Exodus 34:27–28
27 And the Lord said to Moses, “Write these words, for in accordance with these words rI have made a covenant with you and with Israel.” 28 sSo he was there with the Lord forty days and forty nights. He neither ate bread nor drank water. And he twrote on the tablets the words of the covenant, the Ten Commandments.1
Deuteronomy 4:13
13 rAnd he declared to you his covenant, which he commanded you to perform, that is, sthe Ten Commandments,1 tand he wrote them on two tablets of stone.