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.

3. Abijah set the battle in array—that is, took the field and opened the campaign.

with … four hundred thousand chosen men … Jeroboam with eight hundred thousand—These are, doubtless, large numbers, considering the smallness of the two kingdoms. It must be borne in mind, however, that Oriental armies are mere mobs—vast numbers accompanying the camp in hope of plunder, so that the gross numbers described as going upon an Asiatic expedition are often far from denoting the exact number of fighting men. But in accounting for the large number of soldiers enlisted in the respective armies of Abijah and Jeroboam, there is no need of resorting to this mode of explanation; for we know by the census of David the immense number of the population that was capable of bearing arms (1Ch 21:5; compare 2Ch 14:8; 17:14).