מלכים א, פרק י״א, פסוק ו׳

A specific point in time marks a steep and severe decline in the kingdom of Solomon [מדוד ועד לחורבן]. The king's behavior is viewed as evil in the eyes of God, stemming from a failure to follow Him completely. This reveals that Solomon did not fully carry out and complete the will of God.

His failure was not necessarily an active pursuit of wrongdoing, but rather a sin of omission. Solomon simply failed to object to the actions of his wives. He chose to remain silent, doing nothing to stop them from violating the word of God [מצודת דוד].