Exodus 4:23-27

So I said to you, ‘Let My son go so that he may serve Me’; but you have refused to let him go. Behold, I am going to kill your son, your firstborn.” ’ ”

But it came about at the overnight encampment on the way, that the Lord met Moses, and sought to put him to death.

So Zipporah took a flint and cut off her son’s foreskin and threw it at Moses’ feet; and she said, “You are indeed a groom of blood to me!”

So He left him alone. At that time she said, “You are a groom of blood”—because of the circumcision.

Now the Lord said to Aaron, “Go to meet Moses in the wilderness.” So he went and met him at the mountain of God and kissed him.