VI. He traces up all these promised blessings to their great original, the purposes and designs of his own glory (v. 21): This people have I formed for myself, and therefore I do all this for them, that they may show forth my praise. Note, 1. The church is of God's forming, and so are all the living members of it. The new heaven, the new earth, the new man, are the work of God's hand, and are no more, no better, than he makes them; they are fashioned according to his will. 2. He forms it for himself. He that is the first cause is the highest end both of the first and of the new creation. The Lord has made all things for himself, his Israel especially, to be to him for a people, and for a name, and for a praise; and no otherwise can they be for him, or serviceable to him, than as his grace is glorified in them, Jer. xiii. 11; Eph. i. 6, 12, 14. 3. It is therefore our duty to show forth his praise, not only with our lips, but in our lives, by giving up ourselves to his service. As he formed us, so he feeds us, and keeps us, and leads us, and all for himself; for every instance therefore of his goodness we must praise him, else we answer not the end of the beings and blessings we have.