Exodus 24:3; Exodus 24:7

3 Then Moses came and recounted to the people all the words of the LORD and all the ordinances; and all the people answered with one voice and said, "All the words which the LORD has spoken we will do!"

7 Then he took the book of the covenant and read it in the hearing of the people; and they said, "All that the LORD has spoken we will do, and we will be obedient!"