Haggai 1:5

Here the Prophet deals with the refractory people according to what their character required; for as to those who are teachable and obedient, a word is enough for them; but they who are perversely addicted to their sins must be more sharply urged, as the Prophet does here; for he brings before the Jews the punishments by which they had been already visited. It is commonly said, that experience is the teacher of fools; and the Prophet has this in view in these words, apply your hearts to your ways; (135) that is, “If the authority of God or a regard for him is of no importance among you, at least consider how God deals with you. How comes it that ye are famished, that both heaven and earth deny food to you? Besides, though ye consume much food, it yet does not satisfy you. In a word, how is it that all things fade away and vanish in your hands? How is this? Ye cannot otherwise account for it, but that God is displeased with you. If then ye will not of your own accord obey God’s word, let these judgements at least induce you to repent.” It was to apply the heart to their ways, when they acknowledged that they were thus famished, not by chance, but that the curse of God urged them, or was suspended over their heads. He therefore bids them to receive instruction from the events themselves, or from what they were experiencing; and by these words the Prophet more sharply teaches them; as though he had said, that they profited nothing by instruction and warning, and that it remained as the last thing, that they were to be drawn by force while the Lord was chastising them.