1 Kings 11:4

For it came to pass, when Solomon was old [As he was but sixty at the time of his death, "old" is here a relative term, and must mean "toward the close of his life," i.e; when he was about 50 or 55], that his wives turned away his heart after other gods [The text does not limit Solomon's polygamy to the time of old age, but his idolatrous leanings. I say leanings, for it is doubtful to what extent Solomon himself took part in actual idolatry. Both Bähr and Keil—the latter in opposition to the views he held in 1846—not to speak of others, deny that he shared the idolatries of his wives, and the former labours hard, and on the whole, it seems to me, successfully, to prove that he was only guilty of sanctioning idolatrous worship in the vicinity of Jerusalem. His arguments, briefly stated, are these: