Exodus 4:25

But Zipporah took a flint knife, cut off her son's foreskin and touched Moses' feet with it. 'Surely you are a bridegroom of blood to me,' she said.

(New International Version)

Then Zipporah took a flint and cut off her son's foreskin and threw it at Moses' feet, and she said, 'You are indeed a bridegroom of blood to me.'

(New American Standard Bible)

Then Zipporah took a sharp stone, and cut off the foreskin of her son, and cast it at his feet, and said, Surely a bloody husband art thou to me.

(King James Version)