Nevertheless, for David’s sake the LORD his God gave him a lamp in Jerusalem, setting up his son after him, and establishing Jerusalem,
We have here a short account of the short reign of Abijam the son of Rehoboam king of Judah. He makes a better figure, 2 Chr. 13, where we have an account of his war with Jeroboam, the speech which he made before the armies engaged, and the wonderful victory he obtained by the help of God.
Commenting on 1 Kings 15:1-8
Because David did that which was right in the eyes of the Lord,.... With respect to worship: and turned not aside from anything that he commanded him all the days of his life; especially in matters of religion, nor even in his moral walk and conversation, deliberately, studiously, and with design: save only in the matter of Uriah the Hittite; the killing of him, and...
for David's sake did the Lord his God give him a lamp--"A lamp" in one's house is an Oriental phrase for continuance of family name and prosperity. Abijam was not rejected only in consequence of the divine promise to David (see on 1Ki. 11:13-36).