Wherefore the king hearkened not unto the people; for the cause was from the LORD, that he might perform his saying, which the LORD spake by Ahijah the Shilonite unto Jeroboam the son of Nebat.

Wesley's Notes

12:15 From the Lord - Who gave up Rehoboam to so foolish and fatal a mistake, and alienated the peoples affections from him; and ordered all circumstances by his wise providence to that end.

Jamieson-Fausset-Brown Bible Commentary

15-18. the king hearkened not unto the people, for the cause was from the Lord-That was the overruling cause. Rehoboam's weakness (Ec 2:18, 19) and inexperience in public affairs has given rise to the probable conjecture, that, like many other princes in the East, he had been kept secluded in the harem till the period of his accession (Ec 4:14), his father being either afraid of his aspiring to the sovereignty, like the two sons of David, or, which is more probable, afraid of prematurely exposing his imbecility. The king's haughty and violent answer to a people already filled with a spirit of discontent and exasperation, indicated so great an incapacity to appreciate the gravity of the crisis, so utter a want of common sense, as to create a belief that he was struck with judicial blindness. It was received with mingled scorn and derision. The revolt was accomplished, and yet so quietly, that Rehoboam remained in Shechem, fancying himself the sovereign of a united kingdom, until his chief tax gatherer, who had been most imprudently sent to treat with the people, had been stoned to death. This opened his eyes, and he fled for security to Jerusalem.

Matthew Henry's Concise Commentary

12:1-15 The tribes complained not to Rehoboam of his father's idolatry, and revolt from God. That which was the greatest grievance, was none to them; so careless were they in matters of religion, if they might live at case, and pay no taxes. Factious spirits will never want something to complain of. And when we see the Scripture account of Solomon's reign; the peace, wealth, and prosperity Israel then enjoyed; we cannot doubt but that their charges were false, or far beyond the truth. Rehoboam answered the people according to the counsel of the young men. Never was man more blinded by pride, and desire of arbitrary power, than which nothing is more fatal. God's counsels were hereby fulfilled. He left Rehoboam to his own folly, and hid from his eyes the things which belonged to his peace, that the kingdom might be rent from him. God serves his own wise and righteous purposes by the imprudences and sins of men. Those that lose the kingdom of heaven, throw it away, as Rehoboam, by wilfulness and folly.