Exodus 19:1 In the third month, when the children of Israel were gone forth out of the land of Egypt, the same day came they into the wilderness of Sinai.

Leviticus 1:1 And the LORD called unto Moses, and spake unto him out of the tabernacle of the congregation, saying,

Numbers 1:1 And the LORD spake unto Moses in the wilderness of Sinai, in the tabernacle of the congregation, on the first day of the second month, in the second year after they were come out of the land of Egypt, saying,

Numbers 10:11 ¶And it came to pass on the twentieth day of the second month, in the second year, that the cloud was taken up from off the tabernacle of the testimony.

Numbers 10:12 And the children of Israel took their journeys out of the wilderness of Sinai; and the cloud rested in the wilderness of Paran.