Acts 2:42
they continued stedfastly in the apostolical doctrine of a community, and in breaking of bread, and in prayers.
1 Corinthians 15:33-34
be not deceived : "vicious conversation corrupts good morals."
2 Corinthians 6:14-18
Are you not become associates with infidels? but what affinity is there between virtue and vice? and what communication has light with darkness?
Hebrews 10:24
and let us animate one another to the mutual returns of love, and kind offices: not abandoning our assemblies,
Revelation 18:4
And I heard another voice from heaven, saying, come out of her, my people, that ye may not be partakers of her sins, nor share in her plagues: