(36) A lion shall slay thee.--It is obvious to compare the example of 1Kings 13:24.

Verse 36. - Then said he unto him, Because thou hast not obeyed the voice of the Lord, behold, as soon as thou art departed from me, a lion [Heb. the lion, perhaps the lion appointed already to this office, or one that had lately been seen in the neighbourhood] shall slay thee. And as soon as he was departed from him, a [Heb. the] lion found him [same word as in 1 Kings 13:24, where see note], and slew him [For the same sin as that of "the man of God (1 Kings 13:21, 26), viz., disobedience (Deuteronomy 32:24; Jeremiah 5:6), and disobedience, too, under circumstances remarkably similar to those. In fact, the two histories run on almost parallel lines. In each case it is a prophet who disobeys, and disobeys the "word of the Lord;" in each case the disobedience appears almost excusable; in each case the prophet appears to be hardly dealt with, and suffers instant punishment, whilst the king escapes; in each case the punishment is foretold by a prophet; in each case it is effected by the instrumentality of a lion. And in each case the lesson is the same - that God's commands must be kept, whatever the cost, or that stern retribution will inevitably follow.]

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.Then said he unto him, because thou hast not obeyed the voice of the Lord,.... In not smiting him; which, if he was a prophet, he must know how great an evil it was to disregard or disobey what was said by a prophet in his name; he must be inexcusable:

behold, as soon as thou art departed from me, a lion shall slay thee.

And as soon as he was departed from him, a lion found him, and slew him; which may seem severe, yet being an act of disobedience to the command of God, by a prophet of his, was punishable with death.