'Fifteenth' in the Bible

They set out from Elim, and all the congregation of Israel came to the Wilderness of Sin, which is between Elim and Sinai, on the fifteenth day of the second month after they left the land of Egypt.

The Feast of Unleavened Bread to the Lord is on the fifteenth day of the same month; for seven days you shall eat unleavened bread.

“Say to the children of Israel, ‘On the fifteenth day of this seventh month, and for seven days, is the Feast of Booths (Tabernacles) to the Lord.

‘On exactly the fifteenth day of the seventh month (nearly October), when you have gathered in the crops of the land, you shall celebrate the feast of the Lord for seven days, with a Sabbath rest on the first day and a Sabbath rest on the eighth day.

There shall be a feast on the fifteenth day of this month; unleavened bread shall be eaten for seven days.

‘Then on the fifteenth day of the seventh month you shall have a holy [summoned] assembly; you shall do no laborious work, and you shall observe a Feast [of Booths] to the Lord for seven days.

They set out from Rameses on the fifteenth day of the first month; on the day after the Passover the Israelites moved out triumphantly in the sight of all the Egyptians,

Jeroboam held a feast on the fifteenth day of the eighth month, like the feast which is kept in Judah, and he went up to the altar; he did this in Bethel, sacrificing to the calves which he had made. And he stationed in Bethel the priests of the high places which he had made.

So he went up to the altar which he had made in Bethel on the fifteenth day of the eighth month, in the month which he had devised in his own heart [in defiance of God’s commandments]; and he held a feast for the Israelites and he went up to the altar to burn incense [in defiance of God’s law.]

In the fifteenth year of Amaziah the son of Joash king of Judah, Jeroboam [II] the son of Joash (Jehoash) king of Israel became king in Samaria, and reigned forty-one years.

the fifteenth to Bilgah, the sixteenth to Immer,

the fifteenth to Jeremoth, his sons and his relatives, twelve;

So they assembled at Jerusalem in the third month of the fifteenth year of Asa’s reign.

But the Jews who were in Susa assembled on the thirteenth and on the fourteenth of the same month, and on the fifteenth day they rested and made it a day of feasting and rejoicing.

obliging them to celebrate the fourteenth day of the month of Adar, and the fifteenth day of the same month, annually,

In the twelfth year [after King Jehoiachin of Judah was taken into exile], on the fifteenth of the month, the word of the Lord came to me, saying,

In the seventh month, on the fifteenth day of the month at the feast, he shall provide [offerings] like these for the seven days, as the sin offering, the burnt offering, the grain offering, and the oil.”