Otherwise, I will send all My plagues against you and your officials and your people, so you may know that there is no one like Me in all the earth.
14. For I will at this time. The unexpressed condition is implied, “unless he should submit himself to God.” The meaning is, that although he had already chastised his pride, yet that this had been done gently and in moderation; but that He now would use a heavier scourge, since the lighter rods had been unavailing.
Moses must repeat the demand a seventh time, though Pharaoh's heart is hardened and his case now desperate. God sends plagues on the heart itself, making it senseless or hopeless, which are the worst plagues of all. None who hardens his heart against God will prosper.
AI summary
Commenting on Exodus 9:13-21
For I will at this time send all my plagues upon thine heart,.... Not meaning particularly the plague of the hail, which next follows, so called, because it consisted of various things, as hail, rain, lightning, and thunder, as Aben Ezra, and who observes, that Pharaoh was more terrified with this plague than with any other; but rather all the plagues yet to come, for...