(19) In Midian.--Moses appears to have delayed his departure after he obtained permission to go from Jethro. Hence the address "Go, return," which is peremptory.

All the men which sought thy life.--Not only the Pharaoh (Exodus 2:23), but the kindred of the murdered man, and the officials empowered by the Pharaoh to arrest Moses. As forty years had elapsed since the homicide, this is readily conceivable.

Verse 19. - And the Lord said unto Moses in Midian, Go, return. It would seem that Moses was still reluctant, and was delaying his departure, even after he had obtained Jethro's leave to go. Perhaps he was making it an excuse to himself for not setting out that if he returned he might still suffer death on account of the offence which had driven him into exile. To remove this last impediment, God assured him that "all the men were dead who had sought his life."

4:18-23 After God had appeared in the bush, he often spake to Moses. Pharaoh had hardened his own heart against the groans and cries of the oppressed Israelites; and now God, in the way of righteous judgment, hardens his heart against the teaching of the miracles, and the terror of the plagues. But whether Pharaoh will hear, or whether he will forbear, Moses must tell him, Thus saith the Lord. He must demand a discharge for Israel, Let my son go; not only my servant, whom thou hast no right to detain, but my son. It is my son that serves me, and therefore must be spared, must be pleaded for. In case of refusal I will slay thy son, even thy first-born. As men deal with God's people, let them expect so to be dealt with.And the Lord said unto Moses in Midian,.... After he had obtained leave of his father-in-law to quit Midian, but before he left it:

go, return into Egypt: that is, directly, immediately; before he had only given him a commission at large to go thither, but had not fixed the time when he should go; but now he orders him to set forward at once:

for all the men are dead which sought thy life; to take it away, the king of Egypt, and his ministers, and the friends of the Egyptian Moses had slain; and this is said to encourage him to go; and though Moses had never expressed his fear on this account, or made it an objection, yet it might lie secretly in his heart, and be one reason of his backwardness to go into Egypt, and which was now removed.