2 Samuel 13:34-38

Now Absalom had fled. And the young man who was the watchman raised his eyes and looked, and behold, many people were coming from the road behind him by the side of the mountain.

And Jonadab said to the king, “Behold, the king’s sons have come; so it has happened according to your servant’s word.”

As soon as he had finished speaking, behold, the king’s sons came and raised their voices and wept; and the king and all his servants also wept very profusely.

Now Absalom had fled and gone to Talmai the son of Ammihud, the king of Geshur. And David mourned for his son every day.

So Absalom had fled and gone to Geshur, and was there for three years.