Exodus 4:20-25

CLV(i) 20 So Moses took his wife and his sons and let them ride on the donkey and returned to the land of Egypt. Moses also took the rod of the One, Elohim, in his hand. 21 And Yahweh said to Moses: When you go to return to Egypt, see to all the miracles which I place in your hand, that you do them before Pharaoh. Yet I shall make his heart steadfast, and he shall not dismiss the people. 22 So you will say to Pharaoh: Thus says Yahweh, My son, My firstborn, is Israel. 23 And I am saying to you: Dismiss My son that he may serve Me, yet should you refuse to dismiss him, behold, I shall be killing your son, your firstborn. 24 It came to be on the way, in the lodging, that a messenger of Yahweh encountered him and sought to put him to death. 25 So Zipporah took a chert knife and cut off the foreskin of her son and touched it to his feet and said: Because one of bloody affinity are you to me.