Second Book of Kings (Author Compiled by Isaias from records of Samuel, David, Nathan, and Gad.)
9:7et ait ei David ne timeas quia faciens faciam in te misericordiam propter Ionathan patrem tuum et restituam tibi omnes agros Saul patris tui et tu comedes panem in mensa mea semper
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.