Exodus 19:1
In the third month after the children of Israel had gone forth out of the land of Egypt, on that same day they came into the wilderness of Sinai.
Exodus 12:6
and you shall keep it until the fourteenth day of the same month; and the whole assembly of the congregation of Israel shall kill it at evening.
Exodus 16:1
They took their journey from Elim, and all the congregation of the children of Israel came to the wilderness of Sin, which is between Elim and Sinai, on the fifteenth day of the second month after their departing out of the land of Egypt.
Numbers 33:15
They traveled from Rephidim, and encamped in the wilderness of Sinai.
Exodus 12:2
"This month shall be to you the beginning of months. It shall be the first month of the year to you.
Leviticus 23:16-18
even to the next day after the seventh Sabbath you shall number fifty days; and you shall offer a new meal offering to Yahweh.