John Gill
INTRODUCTION TO Exodus 8 In this chapter Pharaoh is threatened with the plague of frogs, in case he refused to let Israel go, which accordingly was brought upon him, Exodus 8:1 and though the magicians did something similar to it, yet these were so troublesome to Pharaoh, that he promised to let the people go, and sacrifice to God, if they removed; and a time being fixed for the removal of them,...
John Gill
And Pharaoh hardened his heart at this time also,.... As he did before, when he found the plague was removed, and the flies were gone: neither would he let the people go; through pride and covetousness, being loath to have the number of those under his dominion so much diminished, and to lose so large a branch of his revenues arising from the labour of these people.
Matthew Henry
Three more of the plagues of Egypt are related in this chapter, I. That of the frogs, which is, 1. Threatened, ver. 1-4. 2. Inflicted, ver. 5, 6. 3. Mimicked by the magicians, ver. 7. 4. Removed, at the humble request of Pharaoh (ver. 8-14), who yet hardens his heart, and, notwithstanding his promise while the plague was upon him (ver. 8), refuses to let Israel go, ver. 15. II. The plague of lice...