1 Kings (Author Compiled by Isaiah and Jeremiah from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
11:34But I will not take the whole kingdom out of his hand; for I will make him prince all the days of his life for David my servant's sake, whom I chose, who kept my commandments and my statutes;
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.