Exodus 31:18
18 And he gave to Moses, when he had finished speaking with him on Mount Sinai, the two tablets of the testimony, etablets of stone, written with the finger of God.
Exodus 32:15–16
15 Then Moses turned and awent down from the mountain with the two btablets of the testimony in his hand, tablets that were written con both sides; on the front and on the back they were written. 16 dThe tablets were the work of God, and the writing was the writing of God, engraved on the tablets.
Deuteronomy 5:22
22 “These words the Lord spoke to all your assembly at the mountain out of the midst of the fire, the cloud, and the thick darkness, with a loud voice; and he added no more. And he wrote them on ltwo tablets of stone and gave them to me.