1 Peter 2:5, 7, 9

ye also, as living stones, are built up a spiritual house, to be a holy priesthood, to offer up spiritual sacrifices, acceptable to God through Jesus Christ.

For you therefore that believe is the preciousness: but for such as disbelieve, The stone which the builders rejected, The same was made the head of the corner

But ye are an elect race, a royal priesthood, a holy nation, a people for God’s own possession, that ye may show forth the excellencies of him who called you out of darkness into his marvellous light