2 Cor 6:14-7:7
Don’t be unequally yoked with unbelievers, for what fellowship have righteousness and iniquity? Or what fellowship has light with darkness? What agreement has Christ with Belial? Or what portion has a believer with an unbeliever? What agreement has a temple of God with idols? For you are a temple of the living God. Even as God said, “I will dwell in them, and walk in them; and I will be their God, and they will be my people.” Therefore
“‘Come out from among them,
and be separate,’ says the Lord.
‘Touch no unclean thing.
I will receive you.
I will be to you a Father.
You will be to me sons and daughters,’
says the Lord Almighty.”
Having therefore these promises, beloved, let us cleanse ourselves from all defilement of flesh and spirit, perfecting holiness in the fear of God. Open your hearts to us. We wronged no one. We corrupted no one. We took advantage of no one. I say this not to condemn you, for I have said before, that you are in our hearts to die together and live together. Great is my boldness of speech toward you. Great is my boasting on your behalf. I am filled with comfort. I overflow with joy in all our affliction. For even when we had come into Macedonia, our flesh had no relief, but we were afflicted on every side. Fightings were outside. Fear was inside. Nevertheless, he who comforts the lowly, God, comforted us by the coming of Titus; and not by his coming only, but also by the comfort with which he was comforted in you, while he told us of your longing, your mourning, and your zeal for me; so that I rejoiced still more.