Isolation vs insulation
Some believers try to flee from the world. The further they remove themselves from sin, the better. But it doesn't really work that way. Sin takes root in our hearts. It doesn't live in dead things, but in living people. Evil always comes from within, as Jesus and Paul taught us. Fleeing is therefore not really an option, because sin will simply emigrate with you every time. Forget about isolation. Forget about escaping from the world. Rather choose insulation! Just as electric wires can be insulated with the right material to ensure the safety of the people who have to work with those wires, so we should allow God to insulate us so that we can give our entire lives to His glory. His insulation includes prayer, studying the Word and regular meetings with other believers. No, God didn't create us to hide. He wants us to be His witnesses to the new world that is coming. But, through His Holy Spirit, He equips us to swim against the current. We are in the world, but not of the world.