2 Corinthians 6:14-18
14) Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?
Think of being yoked, literally yoked with an unbeliever. Yoked together with a wooden crosspiece that is fastened to your neck. The two of you, light and darkness attached together in pulling a principle, precept or some commandment. What do you think would happen? Both of you would be fighting against the other constantly. At best nothing would be accomplished except expended energy and a lot of frustration.
Now think about being unequally yoked. It is you and someone much bigger. Or it’s you yoked to several other unbelievers. You would exhaust yourself fighting the evil in attempting to accomplish good, never able to win simply because you were outnumbered and out-manned.
“What fellowship hath righteousness with unrighteousness?” There is the real question that you must ask yourself. Why are you yoked together with unrighteousness? There is no fellowship between the two.
15) And what concord hath Christ with Belial? or what part hath he that believeth with an infidel?
What concord or agreement does Jesus have with the devil? Or what part does a believer have with a non-believer?
“And what concord- Sympathy, unison. This word refers properly to the unison or harmony produced by musical instruments, where there is a chord. What accordance, what unison is there; what strings are there which being struck will produce a chord or harmony? The idea is, then, there is as much that is discordant between Christ and Belial as there is between instruments of music that produce only discordant and jarring sounds.” (Albert Barnes)
16) And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people.
This would be most vial, an idol in the temple, the synagogue of God. These are opposites of the most extreme. Just as we are the temple of God, being yoked with an unbeliever would be just as vile.
17) Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you.
“Be ye separate” has no different meaning than to be sanctified or consecrated. All mean to be pure and separated from evil. Touch not and be yoked not with evil and God will receive you.
18) And will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.
God will be a Father unto those who keep themselves clean and do not touch nor bind themselves with the unrighteousness or with the children of darkness.