Deuteronomy 26:16-19

I would have the Reader attend to the expressions in these verses, with an eye to the original covenant of grace, and he will then enter into a proper apprehension of them. That original covenant was, that in the seed of Abraham, should all the nations of the earth be blessed. "He saith not (saith the apostle Paid) and to seeds, as of many, but as of one, and to thy seed, which is CHRIST." Galatians 3:16. When GOD, therefore, is here said to avouch himself to be the LORD GOD of Israel, it is that in CHRIST, GOD promiseth to bless his people, and to accept them in him. And his people avouch GOD to be their GOD in CHRIST; depending upon the fulfillment of all his promised covenanted mercies in him. Those expressions of making Israel high, in name, in honour, and in praise; and an holy people above all nations, are all very striking characters of the Israel of GOD. And who is, or ought to be, so holy, so high, so honourable, in their birth, their state; their life, their conversation, as those who have fellowship with the FATHER, and with his Son JESUS CHRIST? Who so peculiar as those, whom the LORD GOD of heaven and earth hath made his Segullah, that is, his chosen ones, his peculiar people. Reader! may it be your happiness and mine, to do as Israel did, avouch GOD to be our GOD, and may he avouch us to be his people.