So Moses decided to live there, and Jethro gave him his daughter Zipporah in marriage,

Then Zipporah, his wife, took a sharp stone, cut off the foreskin of her son, and touched Moses' feet with it. Because of the rite of circumcision she said to Moses, "You are a husband of blood to me." And so the LORD spared Moses' life.

(SEE 4:25)