21. The Lord said to Moses, “When you go to return into Egypt, see that you do all those wonders before Pharaoh, which I have put in your hand, but I will harden his heart, so that he shall not let the people go.
22. You shall say to Pharaoh, ‘Thus says the Lord: Israel is My son, even My firstborn.
23. So I say to you, “Let My son go, that he may serve Me. And if you refuse to let him go, I will slay your son, even your firstborn.” ’ ”
24. At a lodging place on the way, the Lord met him and sought to kill him.
25. Then Zipporah took a sharp stone, and cut off the foreskin of her son, and threw it at his feet, and said, “Surely a bloody husband are you to me.”
26. So He let him go. Then she said, “A bloody husband you are, because of the circumcision.”