Two years later, Absalom invited all of the king's sons to come to Baal Hazor. It was near the border of Ephraim. The workers who clipped the wool off Absalom's sheep were there.
References for 2 Samuel 13:23
Absalom went to the king. He said, "I've had my workers come to clip the wool. Will you and your officials please join me?"
"No, my son," the king replied. "All of us shouldn't go. It would be too much trouble for you." Although Absalom begged him, the king still refused to go. But he gave Absalom his blessing.
Then Absalom said, "If you won't come, please let my brother Amnon come with us." The king asked him, "Why should he go with you?"
But Absalom begged him. So the king sent Amnon with him. He also sent the rest of his sons.
Absalom ordered his men, "Listen! When Amnon has had too much wine to drink, I'll say to you, 'Strike Amnon down.' When I do, kill him. Don't be afraid. I've given you an order, haven't I? Be strong and brave."
So Absalom's men killed Amnon, just as Absalom had ordered. Then all of the king's sons got on their mules and rode away.
While they were on their way, a report came to David. It said, "Absalom has struck down all of your sons. Not one of them is left alive."
The king stood up and tore his clothes. Then he lay down on the ground. All of his servants stood near him. They had also torn their clothes.
Jonadab, the son of David's brother Shimeah, spoke up. He said, "You shouldn't think that all of the princes have been killed. The only one who is dead is Amnon. Absalom had planned to kill him ever since the day Amnon raped his sister Tamar.
You are my king and master. You shouldn't be concerned about this report. It's not true that all of your sons are dead. The only one who is dead is Amnon."
While all of that was taking place, Absalom ran away. The man on guard duty at Jerusalem looked up. He saw many people coming on the road west of him. They were coming down the side of the hill. He went and spoke to the king. He said, "I see men coming down the road from Horonaim. They are coming down the side of the hill."
Jonadab said to the king, "See, your sons are coming. It has happened just as I said it would."
As he finished speaking, the king's sons came in. They were sobbing out loud. The king and all of his servants were also sobbing very bitterly.
When Absalom ran away, he went to Talmai, the son of Ammihud. Talmai was king of Geshur. King David sobbed over his son every day.
So Absalom ran away and went to Geshur. He stayed there for three years.
After some time the king got over his sorrow because of Amnon's death. Then he longed to go to Absalom.