Exodus 19:1,2
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.
Torrey's Topical Textbook—AKJV

Numbers 33:15
And they departed from Rephidim, and pitched in the wilderness of Sinai.
Torrey's Topical Textbook—AKJV