Six warnings from Proverbs regarding friendship:

-Be careful in choosing friends/companions (good companions will influence you for good, the wrong companions will influence you toward evil, leading you into trouble instead of enriching your life. (Proverbs 13:20)

-It is better to have one genuine friend who is looking out for your interests than a multitude of companions.  It is necessary to be discriminating in choosing friends. (Proverbs 18:24)

-We must steer clear of the path of the wicked, those who are restless until they cause someone to fall or take advantage of others. (Proverbs 4:14-17)

-We must avoid those who choose the wrong path, the path of rebellion, because they are not content until they lead someone in their path. (Proverbs 16:29)

-Stay away from angry people (those who are always angry at others especially those in authority and tend to blame others for their misfortune) or you will take up their ways. (Proverbs 22:24-25)

-Steer clear of those who have tendencies toward addictions (alcohol, drugs, food) they will lead you in the path of addiction, laziness, poverty.