1 Kings 2:5

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 (d) shed the blood of war in peace, and (e) put the blood of war upon his girdle that [was] about his loins, and in his shoes that [were] on his feet.

(d) He shed his blood in time of peace, as if there had been war.

(e) He put the bloody sword into his sheath.