Exodus 34:6-7 (New King James Version)

⁶ And the LORD passed before him and proclaimed, “The LORD, the LORD God, merciful and gracious, longsuffering, and abounding in goodness and truth, ⁷ keeping mercy for thousands, forgiving iniquity and transgression and sin, by no means clearing the guilty, visiting the iniquity of the fathers upon the children and the children’s children to the third and the fourth generation.”