I. That a gospel-way of worship being set up in the church there shall be a great resort to it and a general attendance upon it. Those that were left of the enemies of religion shall be so sensible of the mercy of God to them in their narrow escape that they shall apply themselves to the worship of the God of Israel, and pay their homage to him, v. 16. Those that were not consumed shall be converted, and this makes their deliverance a mercy indeed, a double mercy. It is a great change that the grace of God makes upon them; those that had come against Jerusalem, finding their attempts vain and fruitless, shall become as much her admirers as ever they had been her adversaries, and shall come to Jerusalem to worship there, and go in concurrence with those whom they had gone contrary to. Note, As some of Christ's foes shall be made his footstool, so others of them shall be made his friends; and, when the principle of enmity is slain in them, their former acts of hostility are pardoned to them, and their services are admitted and accepted, as though they had never fought against Jerusalem. They shall go up to worship at Jerusalem, because that was the place which God had chosen, and there the temple was, which was a type of Christ and his mediation. Converting grace sets us right, 1. In the object of our worship. They shall no longer worship the Molochs and Baals, the kings and lords, that the Gentiles worship, the creatures of their own imagination, but the King, the Lord of hosts, the everlasting King, the King of kings, the sovereign Lord of all. 2. In the ordinances of worship, those which God himself has appointed. Gospel-worship is here represented by the keeping of the feast of tabernacles, for the sake of those two great graces which were in a special manner acted and signified in that feast-contempt of the world, and joy in God, Neh. viii. 17. The life of a good Christian is a constant feast of tabernacles, and, in all acts of devotion, we must retire from the world and rejoice in the Lord, must worship as in that feast. 3. In the Mediator of our worship; we must go to Christ our temple with all our offerings, for in him only our spiritual sacrifices are acceptable to God, 1 Pet. ii. 5. If we rest in ourselves, we come short of pleasing God; we must go up to him, and mention his righteousness only. 4. In the time of it; we must be constant. They shall go up from year to year, at the times appointed for this solemn feast. Every day of a Christian's life is a day of the feast of tabernacles, and every Lord's day especially (that is the great day of the feast); and therefore every day we must worship the Lord of hosts and every Lord's day with a peculiar solemnity.