'Fifteenth' in the Bible
And they journeyed from Elim, and the whole assembly of the children of Israel came into the wilderness of Sin, which is between Elim and Sinai, on the fifteenth day of the second month after their departure out of the land of Egypt.
And on the fifteenth day of this month is the feast of unleavened bread to Jehovah; seven days shall ye eat unleavened bread.
Speak unto the children of Israel, saying, On the fifteenth day of this seventh month is the feast of booths seven days to Jehovah.
But on the fifteenth day of the seventh month, when ye have gathered in the produce of the land, ye shall celebrate the feast of Jehovah seven days: on the first day there shall be rest, and on the eighth day there shall be rest.
And on the fifteenth day of this month is the feast; seven days shall unleavened bread be eaten.
And on the fifteenth day of the seventh month ye shall have a holy convocation: no manner of servile work shall ye do; and ye shall celebrate a feast to Jehovah seven days;
They journeyed 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 a high hand in the sight of all the Egyptians.
And Jeroboam ordained a feast in the eighth month, on the fifteenth day of the month, like the feast that was in Judah, and he offered upon the altar. So did he in Bethel, sacrificing to the calves that he had made; and he placed in Bethel the priests of the high places that he had made.
And he offered upon the altar that he had made in Bethel, on the fifteenth day of the eighth month, in the month which he had devised of his own heart; and he made a feast for the children of Israel, and he offered upon the altar, burning incense.
In the fifteenth year of Amaziah the son of Joash, king of Judah, Jeroboam the son of Joash, king of Israel, began to reign in Samaria, for forty-one years.
The fifteenth to Jeremoth; his sons and his brethren, twelve.
And they assembled themselves at Jerusalem in the third month of the fifteenth year of the reign of Asa.
But the Jews that were at Shushan gathered themselves together on the thirteenth day thereof, and on the fourteenth thereof; and on the fifteenth of the same they rested, and made it a day of feasting and joy.
to establish this among them, that they should keep the fourteenth day of the month Adar, and the fifteenth day of the same, yearly,
And it came to pass in the twelfth year, on the fifteenth of the month, the word of Jehovah came unto me, saying,
In the seventh month, on the fifteenth day of the month, at the feast, shall he do the like seven days, according to the sin-offering, according to the burnt-offering, and according to the oblation, and according to the oil.