John Wesley on 2 Kings 13:21

He revived - Which miracle God wrought, to do honour to that great prophet, and that by this seal he might confirm his doctrine, to strengthen the faith of Joash, and of the Israelites, in this promise of their success against the Syrians; and in the midst of all their calamities to comfort such Israelites as were Elisha's followers, with the hopes of eternal life, whereof this was a manifest pledge, and to awaken the rest of that people to a due care and preparation for it.