'Of The Month' in the Bible

So they kept the passover in the first month , on the fourteenth day of the month between the two evenings, in the desert of Sinai, - according to all that Yahweh commanded Moses, so, did the sons of Israel.

And so it came to pass in the second year, in the second month on the twentieth of the month, that the cloud lifted itself up, from off the habitation of the testimony;

And, on the first month on the fourteenth day of the month, shall be a passover unto Yahweh;

And in the seventh month, on the first of the month, a holy convocation, shall there be unto you, no laborious work, shall ye do, - a day of loud acclamation, shall it be unto you.

and Aaron the priest went up into Mount Hor, at the bidding of Yahweh, and died there, in the fortieth year, by the coming forth of the sons of Israel out of the land of Egypt, in the fifth month, on the first of the month.