The unfaithfulness of man limits the goodness of God. Though Joash did the prophet’s bidding, it was without any zeal or fervour; and probably without any earnest belief in the efficacy of what he was doing. Compare Mark 6:5-6. God had been willing to give the Israelites complete victory over Syria 2 Kings 13:17; but Joash by his non-acceptance of the divine promise in its fulness had checked the outflow of mercy; and the result was that the original promise could not be fulfilled.
Related Commentaries of 2 Kings 13:19
2 Kings 13:19
19 And the man of God was wroth with him, and said, Thou shouldest have smitten five or six times; then hadst thou smitten Syria till thou hadst consumed it: whereas now thou shalt smite Syria but thrice.