Leviticus-19:2-kjv,asv

1 Peter 1:15-16 NIV
But just as he who called you is holy, so be holy in all you do; for it is written: “Be holy, because I am holy.”

2 Corinthians 6:14-16 NIV
Do not be yoked together with unbelievers. For what do righteousness and wickedness have in common? Or what fellowship can light have with darkness? What harmony is there between Christ and Belial ? Or what does a believer have in common with an unbeliever? What agreement is there between the temple of God and idols? For we are the temple of the living God. As God has said: “I will live with them and walk among them, and I will be their God, and they will be my people.”

Leviticus 11:44-45 NIV
I am the Lord your God; consecrate yourselves and be holy, because I am holy. Do not make yourselves unclean by any creature that moves along the ground. I am the Lord, who brought you up out of Egypt to be your God; therefore be holy, because I am holy.

Leviticus 20:7 NIV
“‘Consecrate yourselves and be holy, because I am the Lord your God.