2 Corinthians 6:14-16

Young's Literal Translation

¹⁴ Become not yoked with others -- unbelievers, for what partaking [is there] to righteousness and lawlessness?

¹⁵ and what fellowship to light with darkness? and what concord to Christ with Belial? or what part to a believer with an unbeliever?

¹⁶ and what agreement to the sanctuary of God with idols? for ye are a sanctuary of the living God, according as God said -- `I will dwell in them, and will walk among [them], and I will be their God, and they shall be My people,