(2.) Upon what inducement this fast is proclaimed and religiously observed (v. 9). Who can tell if God will turn and repent? Observe, [1.] What it is that they hope for—that God will, upon their repenting and turning, change his way towards them and revoke his sentence against them, that he will turn from his fierce anger, which they own they deserve and yet humbly and earnestly deprecate, and that thus their ruin will be prevented, and they perish not. They cannot object against the equity of the judgment, they pretend not to set it aside by appealing to a higher court, but hope in God himself, that he will repent, and that his own mercy (to which they fly) shall rejoice against judgment. They believe that God is justly angry with them, that, their sin being very heinous, his anger is very fierce, and that, if he proceed against them, there is no remedy, but they die, they perish, they all perish, and are undone; for who knows the power of his anger? It is not therefore the threatened overthrow that they pray for the prevention of, but the anger of God that they pray for the turning away of. As when we pray for the favour of God we pray for all good, so when we pray against the wrath of God we pray against all evil. [2.] What degree of hope they had of it: Who can tell if God will turn to us? Jonah had not told them; they had not among them any other prophets to tell them, so that they could not be so confident of finding mercy upon their repentance as we may be, who have the promise and oath of God to depend upon, and especially the merit and mediation of Christ to trust to, for pardon upon repentance. Yet they had a general notion of the goodness of God's nature, his mercy to man, and his being pleased with the repentance and conversion of sinners; and from this they raised some hopes that he would spare them; they dare not presume, but they will not despair. Note, Hope of mercy is the great encouragement to repentance and reformation; and though there be but some glimmerings of hope mixed with great fears arising from a sense of our own sinfulness, and unworthiness, and long abuse of divine patience, yet they may serve to quicken and engage our serious repentance and reformation. Let us boldly cast ourselves at the footstool of free grace, resolving that if we perish, we will perish there; yet who knows but God will look upon us with compassion?