'Peculiar People' in the Bible

For thou art a holy people to the LORD thy God, and the LORD hath chosen thee to be a peculiar people to himself, above all the nations that are upon the earth.

And the LORD hath avouched thee this day to be his peculiar people, as he hath promised thee, and that thou shouldst keep all his commandments;

Who gave himself for us, that he might redeem us from all iniquity, and purify to himself a peculiar people, zealous of good works.

But ye are a chosen generation, a royal priesthood, a holy nation, a peculiar people; that ye should show forth the praises of him who hath called you out of darkness into his marvelous light: