Exodus 34:7

4 So Moses got two stones cut like the first; and early in the morning he went up Mount Sinai, as the Lord had said, with the two stones in his hand.

5 And the Lord came down in the cloud and took his place by the side of Moses, and Moses gave worship to the name of the Lord.

6 And the Lord went past before his eyes, saying, The Lord, the Lord, a God full of pity and grace, slow to wrath and great in mercy and faith;

7 Having mercy on thousands, overlooking evil and wrongdoing and sin; he will not let wrongdoers go free, but will send punishment on children for the sins of their fathers, and on their children's children to the third and fourth generation.

8 Then Moses quickly went down on his face in worship.

9 And he said, If now I have grace in your eyes, let the Lord go among us, for this is a stiff-necked people, and give us forgiveness for our wrongdoing and our sin, and take us for your heritage.

10 And the Lord said, See, this is what I will undertake: before the eyes of your people I will do wonders, such as have not been done in all the earth or in any nation: and all your people will see the work of the Lord, for what I am about to do for you is greatly to be feared.