2 CORINTHIANS 6:14 — KING JAMES VERSION 1
“Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?”
Do not be yoked together with unbelievers. For what do they have in common? Or what fellowship can light have with darkness? — het apistois (unbelievers) prohibits yoking (heterozygeo, mixed partnership). The series of rhetorical questions (meris/heterozetis, common interest/partnership; metochē, fellowship; synchoōnēsis, harmony) builds the case for separation.