Verse by verse study of the book of 2 Corinthians
Do not become unequally yoked with unbelievers, for what participation [is there] with righteousness and with lawlessness? And what fellowship [is there] with light facing darkness? And what agreement [is there] with Christ and facing Belial? Or what portion [is there] in faithfulness with unfaithfulness? And what putting together [is there] with the Holy of Holies of God with idols? For you are a Holy of Holies of a living God, just as the God said that I will dwell among them and I will walk and I will be their God and they will be My people. Wherefore, you come out, out from the midst of them and be separated, the Lord says. And do not touch from unclean and I will welcome you. And I will be to you for a Father and you will be to Me for sons and daughters, the almighty Lord says. Therefore having these promises, beloved, let us cleans ourselves from all defilement of flesh and spirit, while filling up holiness in fear of God.