God does not tell us to avoid contact with unbelievers; quite the contrary. We are called by Christ to love others as He loved us and to lead them to Him. However, we are to be an influence in this world and we are to guard ourselves from being influenced by it. In Ephesians 5:6 Paul says, Let no one deceive you with empty words, for because of such things God’s wrath comes on those who are disobedient. We must always remember that the promises of this world are fleeting and hold temporary satisfaction and fulfillment. It is through our love and obedience of God that we are able to make an eternal impact on those around us.
The more we obey God and refuse to listen to those who reject and disobey Him, the happier we will be. Psalm 1:1 says, Blessed is the man who does not walk in the counsel of the wicked or stand in the way of sinners or sit in the seat of mockers. Friends and colleagues can have a lot of influence over us. The big question is whether our friends build up our faith and encourage our relationship with God. True friends should help us draw closer to a relationship with God, not tear it down.