Rev. 2:14 "And yet I have a few complaints against you. You tolerate some among you who are like Balaam, who showed Balak how to trip up the people of Israel."
One of the things that has become common in the church is the presence of people who trip others up in the faith. Some troublemakers are very easy to see and others are hard to find. If the church is sincere in wanting to do things God's way, she will break fellowship with those who teach or preach things that would cause people to not live holy lives. Holiness is a mandate from God and essential for our getting into heaven. Therefore, the church must not allow anyone to lead others away from holy living.
There are some people who trip up the faith of others who are not easily noticed. We need to be on the lookout for them. We need to shun anyone who would pull us away from holy living. Anyone who would entice us to sin must not be allowed into our lives. Anyone who would discourage us from living holy lives must not be in our fellowship. Anyone who would promote all heaven and no hell must not be listened to. Anyone who would promote God as love and not holy love must not be tolerated. Anyone who does not spur us on to holy living is not good for us. Anyone who would minimize sin's impact on us because of grace should be avoided. Anyone who is a hinderance instead of a help to us is not good for us.
We must be careful who we hang around with. Our goal is to remain pure before God and anyone who influences us to not be pure must not play a prominent role in our lives. It is not easy to keep our souls pure before God and letting people into our lives who work against us is not a very good idea.