Then Zipporah took a stone and circumcised her son, and fell at his feet, and said, "A bloody husband art thou unto me."

And he let him go. She said 'a bloody husband' because of the circumcision.

"When men strive and smite a woman with child so that her fruit depart from her and yet no misfortune followeth: then shall he be amerced, according as the woman's husband will lay to his charge, and he shall pay as the daysmen appoint him.