1 Kings 15:5

because David did that which was right in the eyes of the Lord, he observed the demands of the covenant relation, and turned not aside from anything that He commanded him all the days of his life, save only in the matter of Uriah the Hittite. While David's fall was very great and grievous, it did not break the covenant of Jehovah with Israel, it did not remove the foundations of God's relation toward Israel, as the idolatry of later years did. While Abijam outwardly maintained and observed the rites of Jehovah worship, it was not a matter of real belief of the heart with him, but a case of dead orthodoxy, combined with a tolerance of idol worship in his country.