1 Chronicles 20:1-3

Young's Literal Translation

20 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.

² And David taketh the crown of their king from off his head, and findeth it [in] weight a talent of gold, and in it a precious stone, and it is on the head of David: and spoil of the city he hath brought out very much,

³ and the people who [are] in it he hath brought out, and setteth to the saw, and to cutting instruments of iron, and to axes; and thus doth David to all cities of the sons of Ammon, and David turneth back, and all the people, to Jerusalem.