Exodus 4:25

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.

Cross References

Joshua 5:2-3 At that time the LORD said unto Joshua, Make thee sharp knives, and circumcise again the children of Israel the second time. And Joshua made him sharp knives, and circumcised the children of Israel at the hill of the foreskins.
Genesis 17:14 And the uncircumcised man child whose flesh of his foreskin is not circumcised, that soul shall be cut off from his people; he hath broken my covenant.
2 Samuel 16:7 And thus said Shimei when he cursed, Come out, come out, thou bloody man, and thou man of Belial: