14:21 And Rehoboam the son of Solomon reigned in Judah. Rehoboam [was] forty and one years old when he began to reign, and he reigned seventeen {p} years in Jerusalem, the city which the LORD did choose out of all the tribes of Israel, to put his name there. And his mother's name [was] Naamah an Ammonitess.
(p) And died about four years before Jeroboam.
14:21 Forty one years - Therefore he was born a year before Solomon was king, as appears from chap.11:42, this is noted as an aggravation of Rehoboam's folly, that he was old enough to have been wiser. An Ammonitess - A people cursed by God, and shut out of the congregation of his people for ever. This is observed as one cause both of God's displeasure in punishing Solomon with such a son, and of Rehoboam's apostacy after his three first years, 2Chron 11:17. None can imagine how fatal and how lasting are the consequence of being unequally yoked with an unbeliever.
14:21-31 Here is no good said of Rehoboam, and much said to the disadvantage of his subjects. The abounding of the worst crimes, of the worst of the heathen, in Jerusalem, the city the Lord had chosen for his temple and his worship, shows that nothing can mend the hearts of fallen men but the sanctifying grace of the Holy Spirit. On this alone may we depend; for this let us daily pray, in behalf of ourselves and all around us. The splendour of their temple, the pomp of their priesthood, and all the advantages with which their religion was attended, could not prevail to keep them close to it; nothing less than the pouring out the Spirit will keep God's Israel in their allegiance to him. Sin exposes, makes poor, and weakens any people. Shishak, king of Egypt, came and took away the treasures. Sin makes the gold become dim, changes the most fine gold, and turns it into brass.