3. The tidings of this great deliverance shall be published and welcomed with abundance of joy throughout the kingdom, v. 15. While Sennacherib prevailed, and carried all before him, every day brought bad news; but now, behold, upon the mountains, the feet of him that bringeth good tidings, the feet of the evangelist; he is seen coming at a distance upon the mountains, as fast as his feet will carry him; and how pleasant a sight is it once more to see a messenger of peace, after we have received so many of Job's messengers! We find these words made use of by another prophet to illustrate the mercy of the deliverance of the people of God out of Babylon (Isa. lii. 7), not that the prophets stole the word one from another (as those did, Jer. xxiii. 30), but speaking by the same Spirit, they often used the same expressions; and it may be of good use for ministers to testify their consent to wholesome truths (1 Tim. vi. 3) by concurring in the same forms of sound words, 2 Tim. i. 13. These words are also quoted by the apostle, both from Isaiah and Nahum, and applied to the great redemption wrought out for us by our Lord Jesus, and the publishing of it to the world by the everlasting gospel, Rom. x. 15. Christ's ministers are those messengers of good tidings, that preach peace by Jesus Christ. How beautiful are the feet of those messengers! How welcome their message to those that see their misery and danger by reason of sin! And observe, He that brings these good tidings brings with them a call to Judah to keep her solemn feasts and perform her vows. During the trouble, (1.) The ordinary feasts had been intermitted. Inter arma silent leges—The voice of law cannot be heard amidst the shouts of battle. While Jerusalem was encompassed with armies they could not go thither to worship; but now that the embargo is taken off they must return to the observance of their feasts; and the feasts of the Lord will be doubly sweet to the people of God when they have been for some time deprived of the benefit of them and God graciously restores them their opportunities again, for we are taught the worth of such mercies by the want of them. (2.) They had made vows to God, that, if he would deliver them out of this distress, they would do something extraordinary in his service, to his honour; and now that the deliverance is wrought they are called upon to perform their vows; the promise they had then made must now be made good, for better it is not to vow than to vow and not to pay. And those words, The wicked shall no more pass through thee, may be taken as a promise of the perfecting of the good work of reformation which Hezekiah had begun; the wicked shall not, as they have done, walk on every side, but they shall be cut off, and the baffling of the attempts from the wicked enemies abroad is a mercy indeed to a nation when it is accompanied with the restraint and reformation of the wicked at home, who are its more dangerous enemies.