The Lord Has Proclaimed You His Special People, Deuteronomy 25-26.

Deuteronomy 26:17-19 Today you have proclaimed the Lord to be your God, and that you will walk in His ways and keep His statutes, His commandments, and His judgments, and that you will obey His voice. Also today the Lord has proclaimed you to be His special people, just as He promised you, that you should keep all His commandments, and that He will set you high above all nations which He has made, in praise, in name, and in honor, and that you may be a holy people to the Lord your God, just as He has spoken.”