The news reached the king of Nineveh, and he arose from his throne, and took off his royal robe, covered himself with sackcloth, and sat in ashes.
But as to fasting and sackcloth, it is very true, as we have observed in our remarks on Joel, that repentance consists not in these external things: for God cares not for outward rites, and all those things which are resplendent in the sight of men are worthless before him; what indeed he requires, is sincerity of heart. Hence what Jonah here says of fasting, and other outward performances, ought to be referred to their legitimate end, — that the Ninevites intended thus to show that they were justly summoned as guilty before God’s tribunal, and also, that they humbly deprecated the wrath of their judge. Fasting then and sackcloth were only an external profession of repentance. Were any one to fast all his life, and to put on sackcloth, and to scatter dust on himself, and not to connect with all this a sincerity of heart, he would do nothing but mock God. (47) Hence these outward performances are, in themselves, of small or of no value, except when preceded by an interior feeling of heart, and men be on this account led to manifest such outward evidences. Whenever then Scripture mentions fasting, and ashes, and sackcloth, we must bear in mind that these things are set before us as the outward signs of repentance which when not genuine do nothing else but provoke the wrath of God; but when true, they are approved of God on account of the end in view, and not that they avail, of themselves, to pacify his wrath, or to expiate sins. 