"Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness: and what communion hath light with darkness?" 2 Corinthians 6:14 (by request)
Let's go back a bit to the people before the Flood increased wickedness when the children of God mixed with the unbelievers and adopted their evil ways. The Children of Israel fell into idol worship when they followed the example of the wicked nations about them. Uncounted believers have lost their faith because they were careless in their association with worldly people.
Seldom does such a change come on quickly or abruptly. Believers begin to neglect divine services, find their intimate friends among unbelievers rather than among Christians, or begin to taste the cup of sinful pleasure. Slowly but surely the devil gets them into his power, and they drift farther and farther away until they become unbelievers.
The LORD warns us frequently against toying with sin. "Be not deceived," He says, "evil communications corrupt good manners. Awake to righteousness, and sin not" 1 Cor. 15:33,34. The answer to the question, "What communion hath light with darkness?" is therefore clear. There is no communion, no fellowship, between them.
But don't we remember that Jesus associated with sinners every day. True, but He sought their salvation. Similarly we are to witness to the truth of God's Word among the unbelievers. But that is not making common cause with them. It is helping them. We cannot avoid associating with them in business etc, but we are to do nothing to encourage them in their wickedness, nor are we to associate with them in intimate friendship. We need then to be about finding Christians.
Christian friends, We run a risk if we stop fellowship with other believers at church and instead spend time in places dominated by our powerful spiritual foe, enjoying the fellowship of the world. Even though we must live in this world, we must never live as if we are at home with ungodliness.
In this world but never of it, Help me, LORD, to live this day Free from all that would entangle Of the dazzle and array.
THOUGHT FOR THE DAY - We must live in the world, but we must not let the world live in us.