Exodus 4:25
Then Zipporah took a sharp stone, and cutting off the skin of her son's private parts, and touching his feet with it, she said, Truly you are a husband of blood to me.
Joshua 5:2-3
At that time the Lord said to Joshua, Make yourself stone knives and give the children of Israel circumcision a second time.
Genesis 17:14
And any male who does not undergo circumcision will be cut off from his people: my agreement has been broken by him.
2 Samuel 16:7
And Shimei said, with curses, Be gone, be gone, you man of blood, you good-for-nothing:
Treasury of Scripture Knowledge
Summary
                            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.                        
                    A sharp stone
A bloody
Bible References
A sharp stone
                                        Joshua 5:2                                        
                                                            
                        At that time the Lord said to Joshua, Make yourself stone knives and give the children of Israel circumcision a second time.
                                    A bloody
                                        2 Samuel 16:7                                        
                                                            
                        And Shimei said, with curses, Be gone, be gone, you man of blood, you good-for-nothing: