Exodus 31:18 in the King James Version
And he gave unto Moses, when he had made an end of communing with him upon mount Sinai, two tables of testimony, tables of stone, written with the finger of God.
Context
17 It is a sign between me and the children of Israel forever; for in six days the LORD made heaven and earth, and on the seventh day he rested, and was refreshed.’”
18 When he finished speaking with him on Mount Sinai, he gave Moses the two tablets of the covenant, stone tablets, written with God’s finger.