151 Now in the eighteenth year of king Jeroboam, the son of Nebat, Abijam became king over Judah. 2 For three years he was king in Jerusalem: and his mother's name was Maacah, the daughter of Abishalom. 3 And he did the same sins which his father had done before him: his heart was not completely true to the Lord his God, like the heart of David his father. 4 But because of David, the Lord gave him a light in Jerusalem, making his sons king after him, so that Jerusalem might be safe; 5 Because David did what was right in the eyes of the Lord, and never in all his life went against his orders, but only in the question of Uriah the Hittite. 6 ... 7 Now the rest of the acts of Abijam, and all he did, are they not recorded in the book of the history of the kings of Judah? And there was war between Abijam and Jeroboam. 8 Then Abijam went to rest with his fathers, and they put him into the earth in the town of David: and Asa his son became king in his place.
Matthew Henry's Commentary on 1 Kings 15:1-8
Commentary on 1 Kings 15:1-8
(Read 1 Kings 15:1-8)
Abijam's heart was not perfect with the Lord his God; he wanted sincerity; he began well, but he fell off, and walked in all the sins of his father, following his bad example, though he had seen the bad consequences of it. David's family was continued as a lamp in Jerusalem, to maintain the true worship of God there, when the light of Divine truth was extinguished in all other places. The Lord has still taken care of his cause, while those who ought to have been serviceable thereto have lived and perished in their sins. The Son of David will still continue a light to his church, to establish it in truth and righteousness to the end of time. There are two kinds of fulfilling the law, one legal, the other by the gospel. Legal is, when men do all things required in the law, and that by themselves. None ever thus fulfilled the law but Christ, and Adam before his fall. The gospel manner of fulfilling the law is, to believe in Christ who fulfilled the law for us, and to endeavour in the whole man to obey God in all his precepts. And this is accepted of God, as to all those that are in Christ. Thus David and others are said to fulfil the law.