Exodus 8:10

8:10 He said, “Tomorrow.” And Moses said, “It will be as you say, so that you may know that there is no one like the Lord our God.

Exodus 8:27

8:27 We must go on a three-day journey into the desert and sacrifice to the Lord our God, just as he is telling us.”

Exodus 10:25

10:25 But Moses said, “Will you also provide us with sacrifices and burnt offerings that we may present them to the Lord our God?