At the end of four years, Absalom said to the king, "Let me go to Hebron and fulfill a vow I made to the LORD.
References for 2 Samuel 15:7
While your servant was living at Geshur1 in Aram, I made this vow:2 'If the LORD takes me back to Jerusalem, I will worship the LORD in Hebron. ' "
References for 2 Samuel 15:8
The king said to him, "Go in peace." So he went to Hebron.
Then Absalom sent secret messengers throughout the tribes of Israel to say, "As soon as you hear the sound of the trumpets,3 then say, 'Absalom is king in Hebron.' "
References for 2 Samuel 15:10
Two hundred men from Jerusalem had accompanied Absalom. They had been invited as guests and went quite innocently, knowing nothing about the matter.
While Absalom was offering sacrifices, he also sent for Ahithophel4 the Gilonite, David's counselor,5 to come from Giloh,6 his hometown. And so the conspiracy gained strength, and Absalom's following kept on increasing.7
References for 2 Samuel 15:12