Exodus 19:5 KJV
 Now therefore, if ye will obey my voice indeed, and keep my covenant, then ye shall be a peculiar treasure unto me above all people: for all the earth is mine:
Deuteronomy 7:6 KJV
 For thou art an holy people unto the Lord thy God: the Lord thy God hath chosen thee to be a special people unto himself, above all people that are upon the face of the earth.
Deuteronomy 14:2 KJV
 For thou art an holy people unto the Lord thy God, and the Lord hath chosen thee to be a peculiar people unto himself, above all the nations that are upon the earth.
These three calling out verses are similar in many ways. God calls us. We are supposed to listen to His voice. If we do listen we are considered by Him (and often others) as special or peculiar.
Special sounds good, but peculiar can raise some eyebrows. Peculiar is different, not like the others, marked out.
We might not want all that, but it is what it means to be God’s treasure.
He tells us we are his valuable prizes, and we, as the valued prizes, do what he tells us to do,
No matter what