4 And Moses said, This is what the Lord says: About the middle of the night I will go out through Egypt: 5 And death will come to every mother's first male child in all the land of Egypt, from the child of Pharaoh on his seat of power, to the child of the servant-girl crushing the grain; and the first births of all the cattle. 6 And there will be a great cry through all the land of Egypt, such as never has been or will be again. 7 But against the children of Israel, man or beast, not so much as the tongue of a dog will be moved: so that you may see how the Lord makes a division between Israel and the Egyptians. 8 And all these your servants will come to me, going down on their faces before me and saying, Go out, and all your people with you: and after that I will go out. And he went away from Pharaoh burning with wrath. 9 And the Lord said to Moses, Pharaoh will not give ear to you, so that my wonders may be increased in the land of Egypt. 10 All these wonders Moses and Aaron did before Pharaoh: but the Lord made Pharaoh's heart hard, and he did not let the children of Israel go out of his land.
Matthew Henry's Commentary on Exodus 11:4-15
Commentary on Exodus 11:4-10
(Read Exodus 11:4-10)
The death of all the first-born in Egypt at once: this plague had been the first threatened, but is last executed. See how slow God is to wrath. The plague is foretold, the time is fixed; all their first-born should sleep the sleep of death, not silently, but so as to rouse the families at midnight. The prince was not too high to be reached by it, nor the slaves at the mill too low to be noticed. While angels slew the Egyptians, not so much as a dog should bark at any of the children of Israel. It is an earnest of the difference there shall be in the great day, between God's people and his enemies. Did men know what a difference God puts, and will put to eternity, between those that serve him and those that serve him not, religion would not seem to them an indifferent thing; nor would they act in it with so much carelessness as they do. When Moses had thus delivered his message, he went out from Pharaoh in great anger at his obstinacy; though he was the meekest of the men of the earth. The Scripture has foretold the unbelief of many who hear the gospel, that it might not be a surprise or stumbling-block to us, Romans 10:16. Let us never think the worse of the gospel of Christ for the slights men put upon it. Pharaoh was hardened, yet he was compelled to abate his stern and haughty demands, till the Israelites got full freedom. In like manner the people of God will find that every struggle against their spiritual adversary, made in the might of Jesus Christ, every attempt to overcome him by the blood of the Lamb, and every desire to attain increasing likeness and love to that Lamb, will be rewarded by increasing freedom from the enemy of souls.