I. The setting up of the Christian church, and the planting of the Christian religion, in the world. Christianity shall then be the mountain of the Lord's house; where that is professed God will grant his presence, receive his people's homage, and grant instruction and blessing, as he did of old in the temple of Mount Zion. The gospel church, incorporated by Christ's charter, shall then be the rendezvous of all the spiritual seed of Abraham. Now it is here promised, I. That Christianity shall be openly preached and professed; it shall be prepared (so the margin reads it) in the top of the mountains, in the view and hearing of all. Hence Christ's disciples are compared to a city on a hill, which cannot be hid, Matt. v. 14. They had many eyes upon them. Christ himself spoke openly to the world, John xviii. 20. What the apostles did was not done in a corner, Acts xxvi. 26. It was the lighting of a beacon, the setting up of a standard. Its being every where spoken against supposes that it was every where spoken of. 2. That is shall be firmly fixed and rooted; it shall be established on the top of the everlasting mountains, built upon a rock, so that the gates of hell shall not prevail against it, unless they could pluck up mountains by the roots. He that dwells safely is said to dwell on high, ch. xxxiii. 16. The Lord has founded the gospel Zion. 3. That it shall not only overcome all opposition, but overtop all competition; it shall be exalted above the hills. This wisdom of God in a mystery shall outshine all the wisdom of this world, all its philosophy and all its politics. The spiritual worship which it shall introduce shall put down the idolatries of the heathen; and all other institutions in religion shall appear mean and despicable in comparison with this. See Ps. lxvi. 16. Why leap ye, ye high hills? This is the hill which God desires to dwell in.