'Peculiar People' in the Bible

and this is the pledge of our inheritance, being given for the deliverance of his peculiar people, to the display of his glory.

who gave himself for us, to redeem us from all iniquity, and qualify us to be his peculiar people, passionately affected to virtue.

and this they were destin'd to. but you are the chosen race, you are kings and priests, the holy nation, the peculiar people, that you might display his glory, who called you out