'Month' in the Bible

Let this month be to you the first of months, the first month of the year.

Say to all the children of Israel when they are come together, In the tenth day of this month every man is to take a lamb, by the number of their fathers' families, a lamb for every family:

Keep it till the fourteenth day of the same month, when everyone who is of the children of Israel is to put it to death between sundown and dark.

In the first month, from the evening of the fourteenth day, let your food be unleavened bread till the evening of the twenty-first day of the month.

On this day, in the month Abib, you are going out.

And it will be that, when the Lord takes you into the land of the Canaanite and the Hittite and the Amorite and the Hivite and the Jebusite, the land which he made an oath to your fathers that he would give you, a land flowing with milk and honey, you will do this act of worship in this month.

And they went on their way from Elim, and all the children of Israel came into the waste land of Sin, which is between Elim and Sinai, on the fifteenth day of the second month after they went out of the land of Egypt.

In the third month after the children of Israel went out from Egypt, on the same day, they came into the waste land of Sinai.

You are to keep the feast of unleavened bread; for seven days let your bread be without leaven, as I gave you orders, at the regular time in the month Abib (for in it you came out of Egypt); and let no one come before me without an offering:

Keep the feast of unleavened bread; for seven days your food is to be bread without leaven, as I gave you orders, at the regular time in the month Abib; for in that month you came out of Egypt.

On the first day of the first month you are to put up the House of the Tent of meeting.

So on the first day of the first month in the second year the House was put up.