Audio Download

Spiritual Significance of Numbers – The Number Fifteen

[Study Aired February 22, 2026]

If fourteen signifies spiritual  progression towards spiritual completion, then fifteen, being fourteen plus one, signifies the fruit and the outcome of that spiritual progression toward completion. The number one signifies unity in “the holy spirit of God” (Eph 4:3, 30). When the unity of the spirit is added to our spiritual progression, we are given the outcome of the work of the holy spirit in our progression.

Fifteen is three fives. Three signifies process, and five signifies grace through faith. Here are the links to the studies on those two numbers:

https://www.iswasandwillbe.com/the-spiritual-significance-of-numbers-number-three/

https://www.iswasandwillbe.com/the-spiritual-significance-of-numbers-number-5/

When the process of judgment, signified by the number 3, is multiplied by 5, God’s chastening grace through faith, the product of those two numbers or ‘factors’ is our salvation which that judgment of chastening grace through faith produces:

Eph 2:8  For by grace are ye saved through faith [5x 3]; and that not of yourselves: it is the gift of God [plus 1]:
Eph 2:9  Not of works, lest any man should boast.
Eph 2:10  For we are his workmanship [#1], created in Christ Jesus unto good works, which God [#1] hath before ordained that we should walk in them.

Now we will look at where this number appears in scripture beginning with the Old Testament. The first appearance of this number is:

Gen 5:8  And all the days of Seth were nine hundred and twelve years: and he died.
Gen 5:9  And Enos lived ninety years, and begat Cainan:
Gen 5:10  And Enos lived after he begat Cainan eight hundred and fifteen years, and begat sons and daughters:

Eight hundred is a multiple of 8, the number of new beginnings and the new man. Fifteen is a multiple of 5 which signifies grace through faith. Enos was of the line of Seth, whose name means ‘instead of’. Eve named him ‘Seth’ because she said that God had given her another son “instead of Abel…”:

Gen 4:25  And Adam knew his wife again; and she bare a son, and called his name Seth: For God, said she, hath appointed me another seed instead of Abel, whom Cain slew.

The “eight hundred and fifteen years which Enos lived after he begat Cainan point to the salvation which will come out of all the work which the Lord is doing, including the flood of Noah who was a grandson, five generations removed from Seth, Enos, and Cainan.

There were ten generations from Adam to Noah, as recorded in Genesis 5. The lineage is:

– Adam
– Seth
– Enosh
– Kenan [Cainan]
– Mahalalel
– Jared
– Enoch
– Methuselah
– Lamech
– Noah

The next time we see this number fifteen concerns how high the waters of the flood of Noah prevailed above the highest mountains of that time.  The fossil-rich sedimentary layers found at Everest’s summit… marine fossils, trilobites and crinoids, demonstrate beyond any doubt that the peak of Mount Everest was once under the ocean, not the towering mountain it is today.

Here is what we are told about how high the waters prevailed over the highest mountains of that time:

Gen 7:18  And the waters prevailed, and were increased greatly upon the earth; and the ark went upon the face of the waters.
Gen 7:19  And the waters prevailed exceedingly upon the earth; and all the high hills, that were under the whole heaven, were covered.
Gen 7:20  Fifteen cubits upward did the waters prevail; and the mountains were covered.

The height which the waters prevailed above the mountains has a message of hope for those who can see and receive it. Three fives signifies the process of salvation “by grace through faith” (Eph 2:8-10).

The height of the curtains on either side of the gate of the court was to be 15 cubits:

Exo 27:14  The hangings of one side of the gate shall be fifteen cubits: their pillars three, and their sockets three.
Exo 27:15  And on the other side shall be hangings fifteen cubits: their pillars three, and their sockets three.

15 cubits is 22 feet high or 6.7 meters. That is the height which signifies the sacred boundaries with which the Lord keeps the adversary and our own rebellious carnal mind, “the law of sin in our members”, from robbing us of our reward.

The fifteenth day of the first month is the first day of the Days of Unleavened Bread, and the fifteenth day of the seventh month is the first day of the Feast of Tabernacles:

Exo 12:5  Your [Passover] lamb shall be without blemish, a male of the first year: ye shall take it out from the sheep, or from the goats:
Exo 12:6  And ye shall keep it up until the fourteenth day of the same month: and the whole assembly of the congregation of Israel shall kill it in the evening.

The fourteenth day of the first month is the Passover. The next day is the first day of the Days of Unleavened Bread, the fifteenth day of the first month:

Lev 23:5  In the fourteenth day of the first month at even is the LORD’S passover.
Lev 23:6  And on the fifteenth day of the same month is the feast of unleavened bread unto the LORD: seven days ye must eat unleavened bread.

It is the fifteenth day of the first month that signifies the day when we begin to put sin, signified by leaven, out of our lives. This fifteenth day signifies the beginning of our deliverance from the power of “the law of sin and death… in [our] members”:

Rom 7:18  For I know that in me (that is, in my flesh,) dwelleth no good thing: for to will is present with me; but how to perform that which is good I find not.
Rom 7:19  For the good that I would I do not: but the evil which I would not, that I do.
Rom 7:20  Now if I do that I would not, it is no more I that do it, but sin that dwelleth in me.
Rom 7:21  I find then a law, that, when I would do good, evil is present with me.
Rom 7:22  For I delight in the law of God after the inward man:
Rom 7:23  But I see another law in my members, warring against the law of my mind, and bringing me into captivity to the law of sin which is in my members.
Rom 7:24  O wretched man that I am! who shall deliver me from the body of this death? [This “law of sin in my members”]
Rom 7:25. So then with the mind I myself serve the law of God; but with the flesh the law of sin.

This fifteenth day signifies the time in our life when we begin putting sin out of our lives. It signifies the day when “the law of the spirit of life in Christ Jesus” begins to deliver us from “the law of sin which is in our members” as a result of the experience of evil the Lord has given every man to humble us by that experience of evil which we cannot of ourselves overcome.

Here is the very next verse in the book of Romans:

Rom 8:1  There is therefore now no condemnation to them which are in Christ Jesus, who walk not after the flesh, but after the Spirit.
Rom 8:2  For the law of the Spirit of life in Christ Jesus hath made me free from the law of sin and death.

The Truth of Romans 8:2 is signified in the Old Testament by the first day of unleavened bread on the fifteenth day of the first month. It was on that day, the fifteenth day of the first month, that Israel came up out of Egypt and was delivered from Egyptian slavery, signifying our deliverance from “the law of sin in our members [by] the law of the spirit of life in Christ Jesus.” The concept of deliverance is definitely connected to this number fifteen.

King Hezekiah was delivered from a deadly affliction and had 15 years added to his life.

2Ki 20:1  In those days was Hezekiah sick unto death. And the prophet Isaiah the son of Amoz came to him, and said unto him, Thus saith the LORD, Set thine house in order; for thou shalt die, and not live.
2Ki 20:2  Then he turned his face to the wall, and prayed unto the LORD, saying,
2Ki 20:3  I beseech thee, O LORD, remember now how I have walked before thee in truth and with a perfect heart, and have done that which is good in thy sight. And Hezekiah wept sore.
2Ki 20:4  And it came to pass, afore Isaiah was gone out into the middle court, that the word of the LORD came to him, saying,
2Ki 20:5  Turn again, and tell Hezekiah the captain of my people, Thus saith the LORD, the God of David thy father, I have heard thy prayer, I have seen thy tears: behold, I will heal thee: on the third day thou shalt go up unto the house of the LORD.
2Ki 20:6  And I will add unto thy days fifteen years; and I will deliver thee and this city out of the hand of the king of Assyria; and I will defend this city for mine own sake, and for my servant David’s sake.

This story of Hezekiah demonstrates how this number 15 is associated with deliverance, but it also demonstrates an association with the Lord’s compassion and mercy. Fifteen is three fives, and the number five signifies grace through faith. Therefore, this number fifteen signifies the progression and deliverance of the work of grace in our lives, as this story of Hezekiah’s deliverance from this deadly sickness and having 15 years added to his life, demonstrates. Here again are the links to the studies on the numbers 3 and 5:

https://www.iswasandwillbe.com/the-spiritual-significance-of-numbers-number-three/

https://www.iswasandwillbe.com/the-spiritual-significance-of-numbers-number-5/

In demonstration of the Lord’s mercy on our sins, and His deliverance from those sins, the prophet Hosea bought back his unfaithful wife for 15 shekels of silver:

Hos 3:1  Then said the LORD unto me, Go yet, love a woman beloved of her friend, yet an adulteress, according to the love of the LORD toward the children of Israel, who look to other gods, and love flagons of wine.
Hos 3:2  So I bought her to me for fifteen pieces of silver, and for an homer of barley, and an half homer of barley:
Hos 3:3  And I said unto her, Thou shalt abide for me many days; thou shalt not play the harlot, and thou shalt not be for another man: so will I also be for thee.

Hosea 3:1–2 signifies God’s willingness to restore us to Himself, in spite of our spiritual infidelity.

The number 15 is the sum of the first five natural numbers (1+2+3+4+5 = 15), signifying the sum of the work of each of those numbers. I will briefly review each number at this time, and I will include the links to each study on each of those numbers:

One signifies unity in the spirit of the Lord:

https://www.iswasandwillbe.com/the-spiritual-significance-of-numbers-the-number-one/

Two signifies the witness of Christ and His Father, the witness of the Old and New Testaments, and the witness of the two witnesses:

https://www.iswasandwillbe.com/the-spiritual-significance-of-numbers-number-two/

Three signifies process, especially the process of the three steps in the revelation of Jesus Christ, the seven seals, the seven trumpets, and the seven vials:

https://www.iswasandwillbe.com/?s=the+number+three

Four signifies the whole of whatever is under consideration:

https://www.iswasandwillbe.com/the-spiritual-significance-of-numbers-number-four/

Five signifies the fruit of the work of the Lord’s chastening grace through His faith:

https://www.iswasandwillbe.com/the-spiritual-significance-of-numbers-number-5/

The sum of these first five natural numbers is this number 15 which signifies the fruit of the work of the sum of the work in our lives of what these first five numbers signify. 1+2+3+4+5=15.

God miraculously delivered Israel’s firstborn from the death angel just as Passover began after sunset (Nisan 14). Then, 24 hours later (just as the sun was setting to begin the fifteenth day of Nisan, the first month of the year, the children of Israel began to leave Egypt (Exodus 12:40 – 41). This night is referred to as the “night to be much observed”:

Exo 12:41  And it came to pass at the end of the four hundred and thirty years, even the selfsame day it came to pass, that all the hosts of the LORD went out from the land of Egypt.
Exo 12:42  It is a night to be much observed unto the LORD for bringing them out from the land of Egypt: this is that night of the LORD to be observed of all the children of Israel in their generations.

I asked my Brave search, ‘How many years passed between the first Passover and the Passover of Christ’s betrayal?’ and this is the answer I was given:

“The first Passover occurred in 1451 B.C., according to the Biblical Timeline, marking the Israelites’ exodus from Egypt. The Passover of Jesus’ betrayal and crucifixion is traditionally dated to 30 A.D. or 33 A.D., depending on the chronology used.

“Using the 30 A.D. date for Jesus’ crucifixion:

From 1451 B.C. to 1 A.D. is 1,451 years.
From 1 A.D. to 30 A.D. is 29 years.
Total: 1,480 years passed between the first Passover and the Passover of Jesus’ betrayal.

“Thus, approximately 1,480 years had passed from the first Passover to the Passover of Christ’s betrayal.” (End Quote, Emphasis is AI’s)

I am not quoting AI as scripture, and I am not asserting those figures as being exact. However, they do give us a general idea of how many years passed between the two ‘nights to be much observed unto the Lord for bringing [us] out of Egypt.’ The ‘night to be much observed’ for the eleven apostles who had just vowed to die with Christ, just before they left Him to His fate to save their own skins, and to show us what we also are of ourselves, began that very night when Judas betrayed Christ, and it extended until the day of Pentecost, fifty days later, when Christ Himself, via His Father’s spirit, entered into each of them and gave them the strength and resolve which carnal flesh and blood of itself simply does not have. The apostle Paul’s ‘night to be much observed’ began on the road to Damascus where the Lord demonstrated in a very graphic way just how blind and helpless this great ‘slaughter of the saints’ was in his own power. Each of us and every saint who is, was, or will be will experience his own ‘night to be much observed unto the Lord for bringing us out of Egypt’ and giving us His own power over ‘the law of sin in our members.’ This time in our lives is signified by the fifteenth day of the first month:

Num 33:3  And they departed from Rameses in the first month, on the fifteenth day of the first month; on the morrow after the passover the children of Israel went out with an high hand in the sight of all the Egyptians.
Num 33:4  For the Egyptians buried all their firstborn, which the LORD had smitten among them: upon their gods also the LORD executed judgments.

Not one person in a million is given eyes to see that coming out of Egypt necessitates that we acknowledge that we were in Egypt and we are part of and a slave to Egypt. Not one person in a million is given the spiritual eyesight to see that the death of the firstborn of Egypt signifies the death of our own firstborn ‘old man… the first man Adam.’ It is a very trying time in our lives which Christ refers to as being ‘dragged to [Himself] by His Father’s spirit’:

Joh 6:44  No man can come to me, except the Father which hath sent me draw [G1670: ‘helkuo’, to drag] him: and I will raise him up at the last day.

Exo 12:40  Now the sojourning of the children of Israel, who dwelt in Egypt, was four hundred and thirty years.
Exo 12:41  And it came to pass at the end of the four hundred and thirty years, even the selfsame day it came to pass, that all the hosts of the LORD went out from the land of Egypt.
Exo 12:42  It is a night to be much observed unto the LORD for bringing them out from the land of Egypt: this is that night of the LORD to be observed of all the children of Israel in their generations.

It was fifteenth year of the reign of Tiberius Caesar that John the Baptist’s ministry began:

Luk 3:1  Now in the fifteenth year of the reign of Tiberius Caesar, Pontius Pilate being governor of Judaea, and Herod being tetrarch of Galilee, and his brother Philip tetrarch of Ituraea and of the region of Trachonitis, and Lysanias the tetrarch of Abilene,
Luk 3:2  Annas and Caiaphas being the high priests, the word of God came unto John the son of Zacharias in the wilderness.
Luk 3:3  And he came into all the country about Jordan,  preaching the baptism of repentance for the remission of sins;

Repentance for the remission of sins is the first of the six milk doctrines of Hebrews 6. Repentance is the very first step we take toward our deliverance from the sins of our rebellious, carnal-minded old man:

Heb 6:1  Therefore leaving the principles of the doctrine of Christ, let us go on unto perfection; not laying again the foundation of repentance from dead works, and of faith toward God,
Heb 6:2  Of the doctrine of baptisms, and of laying on of hands, and of resurrection of the dead, and of eternal judgment.
Heb 6:3  And this will we do, if God permit.

The number fifteen is mentioned regarding redeeming a person who is “sixty years old and above”. This is what we are told:

Lev 27:1  And the LORD spake unto Moses, saying,
Lev 27:2  Speak unto the children of Israel, and say unto them, When a man shall make a singular vow, the persons shall be for the LORD by thy estimation.
Lev 27:7  And if it be from sixty years old and above; if it be a male, then thy estimation shall be fifteen shekels, and for the female ten shekels.

Both the metal silver and the number 5 and its multiple of three, signify the Lord’s work of delivering us from the law of sin in the members of our rebellious carnal-minded old man.

I will close with Paul telling us that he spent 15 days with Peter when he first returned to Jerusalem, after his conversion and three years of preaching the gospel in Damascus.

Gal 1:13  For ye have heard of my conversation in time past in the Jews’ religion, how that beyond measure I persecuted the church of God, and wasted it:
Gal 1:14  And profited in the Jews’ religion above many my equals in mine own nation, being more exceedingly zealous of the traditions of my fathers.
Gal 1:15  But when it pleased God, who separated me from my mother’s womb, and called me by his grace,
Gal 1:16  To reveal his Son in me, that I might preach him among the heathen [G1484: ‘ethnos’, Same Greek word translated as ‘Gentiles’ in Acts 15:7]; immediately I conferred not with flesh and blood:
Gal 1:17  Neither went I up to Jerusalem to them which were apostles before me; but I went into Arabia, and returned again unto Damascus.
Gal 1:18  Then after three years I went up to Jerusalem to see Peter, and abode with him fifteen days.
Gal 1:19  But other of the apostles saw I none, save James the Lord’s brother.

Paul spending fifteen days with Peter, as with “all things” (Eph 1:11), was a work of the Lord who already knew that Peter would later be given the honor of being the first apostle to take the gospel to the Gentiles as he reminded the “apostles and elders” at the Jerusalem conference of Act 15:

Act 15:5  But there rose up certain of the sect of the Pharisees which believed, saying, That it was needful to circumcise them, and to command them to keep the law of Moses.
Act 15:6  And the apostles and elders came together for to consider of this matter.
Act 15:7  And when there had been much disputing, Peter rose up, and said unto them, Men and brethren, ye know how that a good while ago God made choice among us, that the Gentiles by my mouth should hear the word of the gospel, and believe.
Act 15:8  And God, which knoweth the hearts, bare them witness, giving them the Holy Ghost, even as he did unto us;
Act 15:9  And put no difference between us and them, purifying their hearts by faith.
Act 15:10  Now therefore why tempt ye God, to put a yoke upon the neck of the disciples, which neither our fathers nor we were able to bear?
Act 15:11  But we believe that through the grace of the Lord Jesus Christ we shall be saved, even as they. [Not ‘they as us’]

These two men, Peter and Paul, were the most prominent characters in the New Testament in taking the gospel to the Gentiles. Spending 15 days with Peter gave Paul time to share the story of his conversion and the calling Paul had been given with Peter. Here is what The Lord had a man named Ananias to tell Paul when he came to give Paul back his physical sight, which the Lord had taken from Paul for three long days when he struck him down on the road to Damascus:

Act 9:13  Then Ananias answered, Lord, I have heard by many of this man, how much evil he hath done to thy saints at Jerusalem:
Act 9:14  And here he hath authority from the chief priests to bind all that call on thy name.
Act 9:15  But the Lord said unto him, Go thy way: for he is a chosen vessel unto me, to bear my name before the Gentiles, and kings, and the children of Israel:
Act 9:16  For I will shew him how great things he must suffer for my name’s sake.

Our deliverance from the law of sin in our members comes only through “suffering for [Christ’s] name sake.” “All things work together for good to them who love God and are the called according to His purpose” (Rom 8:28). Clearly that includes the fifteen days Paul spent with Peter when he first returned to Jerusalem after his three years of preaching the gospel in Damascus.