Acts 2:42
And they were constantly attending on the teaching of the apostles, and the imparting [of their substance], the breaking of bread, and the prayers.
1 Corinthians 15:33-34
Be not deceived; "evil communications corrupt good manners."
2 Corinthians 6:14-18
Be not strangely yoked with unbelievers; for what fellowship hath righteousness with unrighteousness? Or what communion hath light with darkness?
Hebrews 10:24
and let us consider one another, to excite to love and to good works,
Revelation 18:4
And I heard another voice from heaven, saying, Come out of her, my people, that ye be not partakers of her sins, and that ye receive not of her plagues;