Exodus 19:2
For they were departed from Rephidim, and were come to the desert of Sinai, and had pitched in the wilderness; and there Israel camped before the mount.
Torrey's Topical Textbook—AKJV

Exodus 18:20,23
And you shall teach them ordinances and laws, and shall show them the way wherein they must walk, and the work that they must do.
Torrey's Topical Textbook—AKJV

Exodus 31:18
And he gave to Moses, when he had made an end of communing with him on mount Sinai, two tables of testimony, tables of stone, written with the finger of God.
Torrey's Topical Textbook—AKJV