Exodus 34:8-10

So Moses made haste and bowed his head toward the earth, and worshiped. Then he said, “If now I have found grace in Your sight, O Lord, let my Lord, I pray, go among us, even though we are a stiff-necked people; and pardon our iniquity and our sin, and take us as Your inheritance.” And He said: “Behold, I make a covenant. Before all your people I will do marvels such as have not been done in all the earth, nor in any nation; and all the people among whom you are shall see the work of the LORD. For it is an awesome thing that I will do with you.