2 Corinthians 6:14-18
Do not be yoked together with unbelievers. For what partnership have righteousness and lawlessness? Or what fellowship has light with darkness?
Ephesians 1:18
I pray also that the eyes of your heart may be enlightened, so that you may know what is the hope to which he has called you, what are the riches of his glorious inheritance in the saints,
Titus 2:14
who gave himself for us to redeem us from all wickedness and to purify for himself a people that are his very own, zealous for good deeds.
1 Peter 2:9
But you are a chosen race, a royal priesthood, a holy nation, a people for God's own possession, that you may declare the praises of him who called you out of darkness into his marvelous light.