20:42 Thy life - What was the great sin of Ahab in this action, for which God so severely punisheth him? The great dishonour hereby done to God, in suffering so horrid a blasphemer, to go unpunished, which was contrary to an express law, Lev 24:16. And God had delivered him into Ahab's hand, for his blasphemy, as he promised to do, ver.28, by which act of his providence, compared with that law, it was most evident, that this man was appointed by God to destruction, but Ahab was so far from punishing this blasphemer, that he doth not so much as rebuke him, but dismisseth him upon easy terms, and takes not the least care for the reparation of God's honour, and the people were punished for their own sins, which were many, and great; though God took this occasion to inflict it.
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.
