Jamieson, Fausset and Brown on Exodus 10:7-11

7-11. Pharaoh's servants said--Many of his courtiers must have suffered serious losses from the late visitations, and the prospect of such a calamity as that which was threatened and the magnitude of which former experience enabled them to realize, led them to make a strong remonstrance with the king. Finding himself not seconded by his counsellors in his continued resistance, he recalled Moses and Aaron, and having expressed his consent to their departure, inquired who were to go. The prompt and decisive reply, "all," neither man nor beast shall remain, raised a storm of indignant fury in the breast of the proud king. He would permit the grown-up men to go away; but no other terms would be listened to.