Why did Solomon's wisdom falter in his later years?

Solomon did not lose his wisdom the way a candle goes out — it eroded through slow, deliberate choices. The text points to one hinge: his love of many foreign women from nations the Lord had expressly warned against (vv. 1–2). The issue was not marriage as such, but the repeated entry into covenant-competing loyalties. Each alliance required tolerance of another religion, and tolerance gradually became participation (vv. 5–8).

The result was a divided heart, which the author judges with a single devastating comparison: 'his heart was not perfect with Jehovah his God, as was the heart of David his father' (v. 4). David was not sinless, but his posture toward the Lord was undivided. Solomon's greatness was precisely the gift that made his compromise dangerous: he had been warned twice by the Lord (v. 9), had been given the charge directly (v. 10), and still 'kept not that which Jehovah commanded.' Wisdom without obedience is not wisdom at all; it becomes a tool for self-deception.

The Lord therefore announced the rending of the kingdom (vv. 11–13) and raised up adversaries (Hadad, Rezon, Jeroboam) to make the consequence visible. Solomon's failure is a case study in how a strong beginning, even a supernatural gift, cannot protect a person who neglects the written word in favor of political and emotional entanglements.

1 Kings 11:1–13 explains, rather than describes, Solomon's decline. Earlier chapters record the height of his reign — the temple, the prayer, the international fame. This chapter names the single cause: marriages and alliances the Mosaic law forbade, undertaken knowingly. Readers should not picture a sudden moral collapse but a steady drift where repeated small compromises accumulated into national idolatry, including building high places for Chemosh and Molech on the hill facing Jerusalem (v. 7).