Observe a renewed call to save from utter destruction. Deuteronomy 30:19. Six times before the Lord had spoken and without being regarded; but yet a seventh is vouchsafed.
Related Commentaries of Exodus 9:13
13 And the LORD said unto Moses, Rise up early in the morning, and stand before Pharaoh, and say unto him, Thus saith the LORD God of the Hebrews, Let my people go, that they may serve me.