"At last, when it came to extremity, Pharaoh consented to let the people all go, and all that they had; but he was not steadfastly of that mind; he soon repented and pursued after them again, and the reason was, that those lusts . . . were never really mortified in him, but only violently restrained. And thus, being guilty of backsliding, after his seeming compliance with God's commands, he was destroyed without remedy."
Jonathan Edwards, The religious affections, pt. 3, sec. 12 ((Edinburgh: The Banner of Truth Trust, 1986 ), 326), italics mine. Edwards has undoubtedly his sources, but remains nonetheless a very skillful tropologist.