2 Samuel 14:30

Go and set it on fire Absalom's ambition could but ill endure Joab's coldness and delay, and therefore he ordered this extraordinary step to be taken that he might be set right with his father, a step which showed him determined to go any lengths, rather than fall short of his ambitious aims. For he that could order his friend's field, and that friend so great a man as Joab, and his near kinsman, to be set on fire, barely that he might be admitted to court, would little scruple to set his country in a flame (if the expression may be allowed) to be raised to a crown. See Delaney. Absalom's servants set the field on fire For he had still those about him who were ready to execute any command, though ever so unjust, as his servants did when he bade them kill Amnon.