Verse 31. -
Then Joab arose. This high-handed proceeding forced Joab to pay the wished for visit. But, while we cannot acquit Absalom of petulance, we must not regard his act as one of angry revenge; had it been so, Joab would have openly resented it, and he was quite capable of making even the heir apparent feel his anger. It was probably intended as a rough practical joke, which taught Joab better manners, and which he must laugh at, though with inward displeasure.
14:28-33 By his insolent carriage toward Joab, Absalom brought Joab to plead for him. By his insolent message to the king, he gained his wishes. When parents and rulers countenance such characters, they will soon suffer the most fatal effects. But did the compassion of a father prevail to reconcile him to an impenitent son, and shall penitent sinners question the compassion of Him who is the Father of mercies?
Then Joab arose, and came to Absalom unto his house,.... Provoked at what he had done, and to know the reason of it; and which was answering Absalom's end:
and said unto him, wherefore have thy servants set my field on fire? which was not only injurious to his property, but a malicious action.