This had been threatened before: Exodus 4:23. And, Reader! doth not this serve to teach how true that scripture is, the Lord is slow to anger: see Leviticus 26:44. in proof. And observe the expression in this plague. Moses and Aaron are not now to be the instruments of inflicting: I will go out, saith God. Read that scripture: Hebrews 10:31.
Related Commentaries of Exodus 11:3
Exodus 11:3-4
3 And the LORD gave the people favour in the sight of the Egyptians. Moreover the man Moses was very great in the land of Egypt, in the sight of Pharaoh's servants, and in the sight of the people.
4 And Moses said, Thus saith the LORD, About midnight will I go out into the midst of Egypt: