With twelve hundred chariots, and threescore thousand horsemen: and the people were without number that came with him out of Egypt; the Lubims, the {b} Sukkiims, and the Ethiopians.

(b) Who were a people of Africa called the Troglodytes because they lived in holes.

Wesley's Notes

12:3 Lubims - A people of Africk bordering upon Egypt. Sukkiims - A people living in tents, as the word signifies; and such there were not far from Egypt, both in Africk and in Arabia. Ethiopians - Either those beyond Egypt, or the Arabians.

Jamieson-Fausset-Brown Bible Commentary

3-5. the Lubims-the Libyans of northeastern Africa.

the Sukkiims-Some think these were the Kenite Arabs, dwellers in tents, but others maintain more justly that these were Arab troglodytes, who inhabited the caverns of a mountain range on the western coast of the Red Sea.

and the Ethiopians-from the regions south of Egypt. By the overwhelming force of numbers, they took the fortresses of Judah which had been recently put in a state of defense, and marched to lay siege to the capital. While Shishak and his army was before Jerusalem, the prophet Shemaiah addressed Rehoboam and the princes, tracing this calamity to the national apostasy and threatening them with utter destruction in consequence of having forsaken God (2Ch 12:6).

Matthew Henry's Concise Commentary

12:1-16 Rehoboam, forsaking the Lord, is punished. - When Rehoboam was so strong that he supposed he had nothing to fear from Jeroboam, he cast off his outward profession of godliness. It is very common, but very lamentable, that men, who in distress or danger, or near death, seem much engaged in seeking and serving God, throw aside all their religion when they have received a merciful deliverance. God quickly brought troubles upon Judah, to awaken the people to repentance, before their hearts were hardened. Thus it becomes us, when we are under the rebukes of Providence, to justify God, and to judge ourselves. If we have humbled hearts under humbling providences, the affliction has done its work; it shall be removed, or the property of it be altered. The more God's service is compared with other services, the more reasonable and easy it will appear. Are the laws of temperance thought hard? The effects of intemperance will be found much harder. The service of God is perfect liberty; the service of our lusts is complete slavery. Rehoboam was never rightly fixed in his religion. He never quite cast off God; yet he engaged not his heart to seek the Lord. See what his fault was; he did not serve the Lord, because he did not seek the Lord. He did not pray, as Solomon, for wisdom and grace; he did not consult the word of God, did not seek to that as his oracle, nor follow its directions. He made nothing of his religion, because he did not set his heart to it, nor ever came up to a steady resolution in it. He did evil, because he never was determined for good.