Exodus 8:16-26

16 And the Lord said to Moses, Say to Aaron, Stretch forth thy rod with thy hand and smite the dust of the earth; and there shall be lice both upon man, and upon quadrupeds, and in all the land of Egypt.
17 So Aaron stretched out his rod with his hand, and smote the dust of the earth; and the lice were on men and on quadrupeds, and in all the dust of the earth there were lice.
18 And the charmers also did so with their sorceries, to bring forth the louse, and they could not. And the lice were both on the men and on the quadrupeds.
19 So the charmers said to Pharao, This is the finger of God. But the heart of Pharao was hardened, and he hearkened not to them, as the Lord said.
20 And the Lord said to Moses, Rise up early in the morning, and stand before Pharao: and behold, he will go forth to the water, and thou shalt say to him, These things says the Lord: Send away my people, that they may serve me in the wilderness.
21 And if thou wilt not let my people go, behold, I send upon thee, and upon thy servants, and upon thy people, and upon your houses, the dog-fly; and the houses of the Egyptians shall be filled with the dog-fly, even throughout the land upon which they are.
22 and I will distinguish marvellously in that day the land of Gesem, on which my people dwell, in which the dog-fly shall not be: that thou mayest know that I am the Lord the God of all the earth.
23 And I will put a difference between my people and thy people, and on the morrow shall this be on the land. And the Lord did thus.
24 And the dog-fly came in abundance into the houses of Pharao, and into the houses of his servants, and into all the land of Egypt; and the land was destroyed by the dog-fly.
25 And Pharao called Moses and Aaron, saying, Go and sacrifice to the Lord your God in the land.
26 And Moses said, It cannot be so, for we shall sacrifice to the Lord our God the abominations of the Egyptians; for if we sacrifice the abominations of the Egyptians before them, we shall be stoned.

Exodus 8:16-26 Meaning and Commentary

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, Ex 8:1-6 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, it was accordingly done at the entreaty of Moses and Aaron, Ex 8:7-14 but there being a respite, Pharaoh's heart was hardened, and the plague of lice is ordered, and which was executed; and though this the magicians essayed to do, and could not, but owned it to be the finger of God, yet Pharaoh's heart was hardened, Ex 8:15-19 wherefore he is threatened with a swarm of flies, which should not infest Goshen, only the places where the Egyptians dwelt, and it was so, Ex 8:20-24 upon which Pharaoh called for Moses, and declared himself willing the people would sacrifice in the land; but this not being satisfactory, he agreed they should go into the wilderness, but not so far; and on the account of the entreaty of Moses, the plague was removed; but still Pharaoh's heart was hardened, and he would not let the people go, Ex 8:25-32.

The Brenton translation of the Septuagint is in the public domain.