The prophet having now foretold the Babylonish captivity, chap. xxxix, 6, 7, does here arm his people against it by the consideration of their certain deliverance out of it, and their blessed condition after it, as in other things so especially in the coming of the Messiah, and the great and glorious privileges conferred upon God's church and people in his days. The preaching of the gospel by John the baptist and the apostles, ver. 1-11. The power and wisdom of God in governing the world, ver. 12-17. The folly of idolatry, ver. 18-26. God knows the state of his people, and both can and will protect them, ver. 27-31.