First Book of Kings (Author Compiled by Isaias from records of Samuel, David, Nathan, and Gad.)
Chapter 26
6ait David ad Ahimelech Cettheum et Abisai filium Sarviae fratrem Ioab dicens quis descendet mecum ad Saul in castra dixitque Abisai ego descendam tecum
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.