Exodus 19:1
In the third month, in the coming forth of the sons of Israel out of the land of Egypt, in that day they came to the desert of Sinai.
Exodus 12:6
And it shall be to you for a preservation till the fourteenth day of this month; and they shall slaughter it, all the convocation of the assembly of Israel, between the two evenings.
Exodus 16:1
And they will remove from Ailam, and all the assembly of the sons of Israel will come to the desert of Sin, which is between Ailam and between Sinai, the fifteenth day of the second month of their coming out of the land of Egypt
Numbers 33:15
And they will remove from Rephidim, and encamp in the desert of Sinai.
Exodus 12:2
This month is to you the beginning of months: this to you the first month of the year.
Leviticus 23:16-18
Till from the morrow of the seventh Sabbath, shall ye number fifty days; and ye brought a new gift to Jehovah.