These verses thoroughly cover the topic:
Revelation 1:6 (KJV)
6 And hath made us kings and priests unto God and his Father; to him be glory and dominion for ever and ever. Amen.
Revelation 5:10 (KJV)
10 And hast made us unto our God kings and priests: and we shall reign on the earth.
1 Peter 2:3–9 (KJV)
3 If so be ye have tasted that the Lord is gracious.
4 To whom coming, as unto a living stone, disallowed indeed of men, but chosen of God, and precious,
5 Ye also, as lively stones, are built up a spiritual house, an holy priesthood, to offer up spiritual sacrifices, acceptable to God by Jesus Christ.
6 Wherefore also it is contained in the scripture, Behold, I lay in Sion a chief corner stone, elect, precious: and he that believeth on him shall not be confounded.
7 Unto you therefore which believe he is precious: but unto them which be disobedient, the stone which the builders disallowed, the same is made the head of the corner,
8 And a stone of stumbling, and a rock of offence, even to them which stumble at the word, being disobedient: whereunto also they were appointed.
9 But ye are a chosen generation, a royal priesthood, an holy nation, a peculiar people; that ye should shew forth the praises of him who hath called you out of darkness into his marvellous light:
1 Corinthians 3:16 (KJV)
16 Know ye not that ye are the temple of God, and that the Spirit of God dwelleth in you?