Be you not unequally yoked together with unbelievers: for what fellowship has righteousness with unrighteousness? and what partnership has light with darkness?
All Commentaries on 2 Corinthians 6:14 Go To 2 Corinthians 6
Alexander of Alexandria
AD 250
E can the truth itself and God the Word receive? In what respect can the life and the true light be made better? And if this be so, how much more unnatural is it that wisdom should ever be capable of folly; that the power of God should be con-joined with infirmity; that reason should be obscured by unreason; or that darkness should be mixed up with the true light? And the apostle says, on this place, "What communion hath light with darkness? and what concord hath Christ with Belial? ".
But they will not prevail; for the truth prevails, and there is no communion betwixt light and darkness, no concord between Christ and Belial.