2 Samuel 15:4-12

Moreover, Absalom would say, “Oh that one would appoint me judge in the land, then every man who has any suit or cause could come to me and I would give him justice.” And when a man came near to prostrate himself before him, he would put out his hand and take hold of him and kiss him. In this manner Absalom dealt with all Israel who came to the king for judgment; so Absalom stole away the hearts of the men of Israel. Now it came about at the end of forty years that Absalom said to the king, “Please let me go and pay my vow which I have vowed to the LORD, in Hebron. For your servant vowed a vow while I was living at Geshur in Aram, saying, ‘If the LORD shall indeed bring me back to Jerusalem, then I will serve the LORD.’ ” The king said to him, “Go in peace.” So he arose and went to Hebron. But Absalom sent spies throughout all the tribes of Israel, saying, “As soon as you hear the sound of the trumpet, then you shall say, ‘Absalom is king in Hebron.’ ” Then two hundred men went with Absalom from Jerusalem, who were invited and went innocently, and they did not know anything. And Absalom sent for Ahithophel the Gilonite, David’s counselor, from his city Giloh, while he was offering the sacrifices. And the conspiracy was strong, for the people increased continually with Absalom.