And I prayed therefore unto the Lord,.... What follows is a different prayer from that in Exo 32:31 and agrees better with that in Deu 9:11, delivered before he came down from the mount, yet could not be the same, because delivered at another forty days and nights: and said, O Lord God, destroy not thy people, and thine inheritance: because they were his inheritance, a people whom he had chosen for his peculiar treasure; this is the first argument used, another follows: which thou hast redeemed through thy greatness; redeemed out of the house of bondage, the land of Egypt, by his great power, as next explained: which thou hast brought forth out of Egypt with a mighty hand: inflicting plagues on the Egyptians, particularly destroying their firstborn, which made them the Israelites urge to depart.