21 And Jehovah said unto Moses, When thou goest back into Egypt, see that thou do before Pharaoh all the wonders which I have put in thy hand: but I will harden his heart and he will not let the people go.
22 And thou shalt say unto Pharaoh, Thus saith Jehovah, Israel is my son, my first-born:
23 And I have said unto thee, Let my son go, that he may serve me; and thou hast refused to let him go: behold, I will slay thy son, thy first-born.
24 And it came to pass on the way at the lodging-place, that Jehovah met him, and sought to kill him.
25 Then Zipporah took a flint, and cut off the foreskin of her son, and cast it at his feet; and she said, Surely a bridegroom of blood art thou to me.
26 So he let him alone. Then she said, A bridegroom of blood `art thou', because of the circumcision.
27 And Jehovah said to Aaron, Go into the wilderness to meet Moses. And he went, and met him in the mountain of God, and kissed him.
28 And Moses told Aaron all the words of Jehovah wherewith he had sent him, and all the signs wherewith he had charged him.
29 And Moses and Aaron went and gathered together all the elders of the children of Israel:
30 And Aaron spake all the words which Jehovah had spoken unto Moses, and did the signs in the sight of the people.