For it came to pass, when Solomon was old, that his wives turned away his heart after other gods: and his heart was not {c} perfect with the LORD his God, as was the heart of David his father.

(c) He did not serve God with a pure heart.

Wesley's Notes

11:4 Was old - As having now reigned nigh thirty years. When it might have been expected that experience would have made him wiser: then God permitted him to fall so shamefully, that he might be to all succeeding generations an example of the folly, and weakness of the wisest and the best men, when left to themselves. Turned his heart - Not that they changed his mind about the true God, and idols, which is not credible; but they obtained from him a publick indulgence for their worship, and possibly persuaded him to join with them in the outward act of idol - worship; or, at least, in their feasts upon their sacrifices, which was a participation of their idolatry.

Jamieson-Fausset-Brown Bible Commentary

4. when Solomon was old-He could not have been more than fifty.

his wives turned away his heart after other gods-Some, considering the lapse of Solomon into idolatry as a thing incredible, regard him as merely humoring his wives in the practice of their superstition; and, in countenancing their respective rites by his presence, as giving only an outward homage-a sensible worship, in which neither his understanding nor his heart was engaged. The apology only makes matters worse, as it implies an adding of hypocrisy and contempt of God to an open breach of His law. There seems no possibility of explaining the language of the sacred historian, but as intimating that Solomon became an actual and open idolater, worshipping images of wood or stone in sight of the very temple which, in early life, he had erected to the true God. Hence that part of Olivet was called the high place of Tophet (Jer 7:30-34), and the hill is still known as the Mount of Offense, of the Mount of Corruption (2Ki 23:13).

Matthew Henry's Concise Commentary

11:1-8 There is not a more melancholy and astonishing instance of human depravity in the sacred Scriptures, than that here recorded. Solomon became a public worshipper of abominable idols! Probably he by degrees gave way to pride and luxury, and thus lost his relish for true wisdom. Nothing forms in itself a security against the deceitfulness and depravity of the human heart. Nor will old age cure the heart of any evil propensity. If our sinful passions are not crucified and mortified by the grace of God, they never will die of themselves, but will last even when opportunities to gratify them are taken away. Let him that thinks he stands, take heed lest he fall. We see how weak we are of ourselves, without the grace of God; let us therefore live in constant dependence on that grace. Let us watch and be sober: ours is a dangerous warfare, and in an enemy's country, while our worst foes are the traitors in our own hearts.