Second Book of Kings (Author Compiled by Isaias from records of Samuel, David, Nathan, and Gad.)
11:25et dixit David ad nuntium haec dices Ioab non te frangat ista res varius enim eventus est proelii et nunc hunc nunc illum consumit gladius conforta bellatores tuos adversum urbem ut destruas eam et exhortare eos
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.