35 Meanwhile, the Lord instructed one of the group of prophets to say to another man, "Hit me!" But the man refused to hit the prophet. 36 Then the prophet told him, "Because you have not obeyed the voice of the Lord, a lion will kill you as soon as you leave me." And when he had gone, a lion did attack and kill him. 37 Then the prophet turned to another man and said, "Hit me!" So he struck the prophet and wounded him. 38 The prophet placed a bandage over his eyes to disguise himself and then waited beside the road for the king. 39 As the king passed by, the prophet called out to him, "Sir, I was in the thick of battle, and suddenly a man brought me a prisoner. He said, 'Guard this man; if for any reason he gets away, you will either die or pay a fine of seventy-five pounds of silver!' 40 But while I was busy doing something else, the prisoner disappeared!" "Well, it's your own fault," the king replied. "You have brought the judgment on yourself." 41 Then the prophet quickly pulled the bandage from his eyes, and the king of Israel recognized him as one of the prophets. 42 The prophet said to him, "This is what the Lord says: Because you have spared the man I said must be destroyed, now you must die in his place, and your people will die instead of his people."
Matthew Henry's Commentary on 1 Kings 20:35-42
Commentary on 1 Kings 20:31-43
(Read 1 Kings 20:31-43)
This encouragement sinners have to repent and humble themselves before God; Have we not heard, that the God of Israel is a merciful God? Have we not found him so? That is gospel repentance, which flows from an apprehension of the mercy of God, in Christ; there is forgiveness with him. What a change is here! The most haughty in prosperity often are most abject in adversity; an evil spirit will thus affect a man in both these conditions. There are those on whom, like Ahab, success is ill bestowed; they know not how to serve either God or their generation, or even their own true interests with their prosperity: Let favour be showed to the wicked, yet will he not learn righteousness. The prophet designed to reprove Ahab by a parable. If a good prophet were punished for sparing his friend and God's when God said, Smite, of much sorer punishment should a wicked king be thought worthy, who spared his enemy and God's, when God said, Smite. Ahab went to his house, heavy and displeased, not truly penitent, or seeking to undo what he had done amiss; every way out of humour, notwithstanding his victory. Alas! many that hear the glad tidings of Christ, are busy and there till the day of salvation is gone.