Joab
2 Samuel 11:25
And David saith unto the messenger, 'Thus dost thou say unto Joab, Let not this thing be evil in thine eyes; for thus and thus doth the sword devour; strengthen thy warfare against the city, and throw it down -- and strengthen thou him.'
1 Chronicles 20:1
And it cometh to pass, at the time of the turn of the year -- at the time of the going out of the messengers -- that Joab leadeth out the force of the host, and destroyeth the land of the sons of Ammon, and cometh in and beseigeth Rabbah -- David is abiding in Jerusalem -- and Joab smiteth Rabbah, and breaketh it down.