Deuteronomy 26:16-19 -

Moses winds up his address by a solemn admonition to the people to keep and observe the laws and commandments which the Lord by him had laid upon them, reminding them that they had entered into covenant with God, and had thereby pledged themselves to obedience to all that he had enjoined, as he on his part had pledged himself to be their Benefactor, who would fulfill to them all his gracious promises, and would exalt them above all the nations of the earth.