The Lord will be furious, and instead of forgiving you, he will separate you from the other tribes. Then he will destroy you, by piling on you all the curses in The Book of God's Law, and you will be forgotten forever.
Can you measure the heavens? Can you explore the depths of the earth? That's how hard it would be for me to reject Israel forever, even though they have sinned. I, the Lord, have spoken.
Moses tried to get the Lord God to change his mind: Our Lord, you used your mighty power to bring these people out of Egypt. Now don't become angry and destroy them.