First Book of Kings (Author Compiled by Isaias from records of Samuel, David, Nathan, and Gad.)
17:20surrexit itaque David mane et commendavit gregem custodi et onustus abiit sicut praeceperat ei Isai et venit ad locum Magala et ad exercitum qui egressus ad pugnam vociferatus erat in certamine
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.