I. That a happy period should be put to their fasts, and there should be no more occasion for them, but they should be converted into thanksgiving days, v. 19. This is a direct answer to the enquiry concerning their fasts, ch. vii. 3. Those of them that fasted in hypocrisy had their doom in the foregoing chapter, but those that in sincerity humbled themselves before God, and sought his face, have here a comfortable assurance given them of a large share in the happy times approaching. The four yearly fasts which they had religiously observed should be to the house of Judah joy and gladness, and solemn feasts, and those cheerful ones. Note, Joyous times will come to the church after troublous times; if weeping endure for more than a night, and joy come not next morning, yet the morning will come that will introduce it at length. And, when God comes towards us in ways of mercy, we must meet him with joy and thankfulness; when God turns judgments into mercies we must turn fasts into festivals, and thus walk after the Lord. And those who sow in tears with Zion shall reap in joy with her; those who submit to the restraints of her solemn fasts while they continue shall share in the triumphs of her cheerful feasts when they come, Isa. lxvi. 10. The inference from this promise is, "Therefore love the truth and peace; be faithful and honest in all your dealings, and let it be a pleasure to you to be so, though thereby you cut yourselves short of those gains which you see others get dishonestly; and, as much as in you lies, live peaceably with all men, and be in your element when you are in charity. Let the truths of God rule in your heads, and let the peace of God rule in your hearts."