Bible Notes Online - 2-Chronicles 12 - ESV
Commentary

v1: "Jeshurun grew fat and kicked" (Deut 32.15); this prophecy was fulfilled several times in the history of Israel and Judah. This was one such occasion. Rehoboam had strengthened the kingdom (see also Uzziah in 26.16), but then abandoned the law of the Lord God. Rehoboam had only been king for four years, but grew complacent. The military defeat at the hands of Shishak, king of Egypt, was due to his forsaking the law of God.

v2-4: Shishak was God's instrument of judgment. He came with a large army, and captured the fortified cities, which proved useless without faith in the Lord God.

v5: The Lord, being gracious, continued to speak to His people. The message was clear; the people had turned from the Lord; and He had abandoned them to Shishak.

The reign of Rehoboam is described in chapters 10 and 11. There is no open idolatry, no explicit abuse of the poor. But there seems to be a drift away from God, little mention of God in Rehoboam’s decisions and actions. He seems simply to have lived his life ignoring God. As in the book of Hebrews, the danger is not always rejection; our greater danger might be neglect of God and His ways.

v6-8: The measure of repentance was honoured by the Lord. He promised deliverance from Shishak. There was also a lesson to learn; the difference between serving God and serving the enemy.

v9-11: Rehoboam lost the gold of glory, and replaced it with bronze of judgment.

v12: Through Rehoboam's humility before God, there was some restraint of evil in the land.

v13-14: Rehoboam failed because he did not set his heart on seeking the Lord. It is vital for us, that we enter His presence with reverence; that we fill our lives with the things of God; and that we maintain an attitude of prayerfulness.

Rehoboam’s mother, one of Solomon’s wives, was Naamah, an Ammonitess; she would not be a good influence. See also 15.16, which refers to Maacah, Rehoboam’s wife, who encouraged idolatry.

v15-16: Through Rehoboam's reign, there was ongoing warfare with Israel.