Unfaithful Heart

1 Kings 11:9
The LORD became angry with Solomon because his heart had turned away from the LORD, the God of Israel, who had appeared to him twice.

The story of Solomon is coming to an end.
God is angry. That's a scary enough thought in itself. Solomon had every reason to keep his heart turned toward God, including two personal visits. But it's like Jesus said in the story of the beggar Lazarus. Even the return of someone from the dead won't convince everyone.
The human heart has a memory about 5 minutes long. We enjoy daily abundance and occasional miracles, yet our hearts look everywhere but toward God.
For Solomon, the price was the kingdom of Israel. He enjoyed a united country to the end of his days, but he knew that his son would not. Before Solomon was off the scene, he witnessed the enemies mobilizing. He personally promoted Jeroboam, then tried to kill him after the prophecy that he would be the one to split the kingdom. So there must have been some remorse in his last days, as the shape of the future showed up plainly.
And he could have no doubt why it happened.
The destruction of Israel had begun in his own heart.