Exodus 4:24-26

24But it came about at the overnight encampment on the way, that the Lord met 1Moses, and 2sought to put him to death. 25So Zipporah took 3a flint and cut off her son’s foreskin and 4threw it at Moses’ feet; and she said, “You are indeed a groom of blood to me!” 26So He left him alone. At that time she said, “You are a groom of blood”--5because of the circumcision.