2 Chronicles 12:3

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

The Lubims - the Libyans of northeastern Africa.

The Sukkiims. Some think these were the Scenite 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.

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 were 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 (2 Chronicles 12:6).