1 Corinthians 15:33

Do not deceive yourselves: "Evil companionships corrupt good morals."

2 Corinthians 6:14-17

Do not come into close association with unbelievers, like oxen yoked with asses. For what is there in common between righteousness and lawlessness? Or what partnership has light with darkness?

Ephesians 5:11

Have nothing to do with the barren unprofitable deeds of darkness, but, instead of that, set your faces against them;

Treasury of Scripture Knowledge

Summary

That ye come not among these nations, these that remain among you; neither make mention of the name of their gods, nor cause to swear by them, neither serve them, nor bow yourselves unto them:

Bible References

That ye come

1 Corinthians 15:33
Do not deceive yourselves: "Evil companionships corrupt good morals."
2 Corinthians 6:14
Do not come into close association with unbelievers, like oxen yoked with asses. For what is there in common between righteousness and lawlessness? Or what partnership has light with darkness?
Ephesians 5:11
Have nothing to do with the barren unprofitable deeds of darkness, but, instead of that, set your faces against them;