Deuteronomy 14:2 NIV

Deuteronomy 7:6 niv
For you are a people holy to the Lord your God. The Lord your God has chosen you out of all the peoples on the face of the earth to be his people, his treasured possession.

Leviticus 20:26 niv
You are to be holy to me because I, the Lord, am holy, and I have set you apart from the nations to be my own.