Exodus 34:6-7

And the LORD passed by before him, and proclaimed, The LORD, the LORD, a God full of compassion and gracious, slow to anger, and plenteous in mercy and truth; keeping mercy for thousands, forgiving iniquity and transgression and sin: and that will by no means clear the guilty; visiting the iniquity of the fathers upon the children, and upon the children's children, upon the third and upon the fourth generation.