First Book of Kings (Author Compiled by Isaias from records of Samuel, David, Nathan, and Gad.)
17:12David autem erat filius viri ephrathei de quo supra dictum est de Bethleem Iuda cui erat nomen Isai qui habebat octo filios et erat vir in diebus Saul senex et grandevus inter viros
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.