I asked Him. I believe.
Moreover thou knowest also what Joab the son of Zeruiah did to me, and what he did to the two captains of the hosts of Israel, unto Abner the son of Ner, and unto Amasa the son of Jether, whom he slew, and shed the blood of war in peace, and put the blood of war upon his girdle that was about his loins, and in his shoes that were on his feet. - 1Ki 2:5
For their feet run to evil, and make haste to shed blood. - Pro 1:16
Their feet run to evil, and they make haste to shed innocent blood: their thoughts are thoughts of iniquity; wasting and destruction are in their paths. - Isa 59:7
Their feet are swift to shed blood: - Rom 3:15