Acts 2:42

And they devoted themselves to the teaching of the apostles and to fellowship with one another, to the breaking of bread and to prayer.

1 Corinthians 15:33-34

Do not be so misled: "Evil companionships corrupt good character."

2 Corinthians 6:14-18

Stop forming intimate and inconsistent relations with unbelievers. What partnership can right-doing have with law-breaking, or how can light participate with darkness?

Hebrews 10:24

Let us continue so to consider one another as to stimulate one another to love and good deeds.

Revelation 18:4

Then I heard another voice from heaven say: "Come out of her, my people, so that you may not share in her sins and suffer from her plagues.

Treasury of Scripture Knowledge

Summary

He that walketh with wise men shall be wise: but a companion of fools shall be destroyed.

General references

Bible References

That

Acts 2:42
And they devoted themselves to the teaching of the apostles and to fellowship with one another, to the breaking of bread and to prayer.
Hebrews 10:24
Let us continue so to consider one another as to stimulate one another to love and good deeds.

General references

Mark 4:10
When He was by Himself, those who stayed about Him with the Twelve began to ask Him about the stories.
Ephesians 5:7
So you must stop having anything to do with them.