4 For it came about that when Solomon was old, his heart was turned away to other gods by his wives; and his heart was no longer true to the Lord his God as the heart of his father David had been. 5 For Solomon went after Ashtoreth, the goddess of the Zidonians, and Milcom, the disgusting god of the Ammonites. 6 And Solomon did evil in the eyes of the Lord, not walking in the Lord's ways with all his heart as David his father did.
Matthew Henry's Commentary on 1 Kings 11:4-6
Commentary on 1 Kings 11:1-8
(Read 1 Kings 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.