13:1-22 Abijah overcomes Jeroboam. - Jeroboam and his people, by apostacy and idolatry, merited the severe punishment Abijah was permitted to execute upon them. It appears from the character of Abijah, 1Ki 15:3, that he was not himself truly religious, yet he encouraged himself from the religion of his people. It is common for those that deny the power of godliness, to boast of the form of it. Many that have little religion themselves, value it in others. But it was true that there were numbers of pious worshippers in Judah, and that theirs was the more righteous cause. In their distress, when danger was on every side, which way should they look for deliverance unless upward? It is an unspeakable comfort, that our way thither is always open. They cried unto the Lord. Earnest prayer is crying. To the cry of prayer they added the shout of faith, and became more than conquerors. Jeroboam escaped the sword of Abijah, but God struck him; there is no escaping his sword.

4-12. Abijah stood up upon Mount Zemaraim—He had entered the enemy's territory and was encamped on an eminence near Beth-el (Jos 18:22). Jeroboam's army lay at the foot of the hill, and as a pitched battle was expected, Abijah, according to the singular usage of ancient times, harangued the enemy. The speakers in such circumstances, while always extolling their own merits, poured out torrents of invective and virulent abuse upon the adversary. So did Abijah. He dwelt on the divine right of the house of David to the throne; and sinking all reference to the heaven-condemned offenses of Solomon and the divine appointment of Jeroboam, as well as the divine sanction of the separation, he upbraided Jeroboam as a usurper, and his subjects as rebels, who took advantage of the youth and inexperience of Rehoboam. Then contrasting the religious state of the two kingdoms, he drew a black picture of the impious innovations and gross idolatry introduced by Jeroboam, with his expulsion and impoverishment (2Ch 11:14) of the Levites. He dwelt with reasonable pride on the pure and regular observance of the ancient institutions of Moses in his own dominion [2Ch 13:11] and concluded with this emphatic appeal: "O children of Israel, fight ye not against Jehovah, the God of your fathers, for ye shall not prosper."