I’m not a suit-wearing guy. I often dress casual to worship (not as casual as flip-flops, but jeans are known to be worn on my person from time to time). However, we are part of the body of Christ and because of this, we need to at least ask the question: How am I glorifying God in my relation to my brothers and sisters in Christ (primarily) and to those who are lost, but seeking the Lord (secondarily).

If I commit my membership to a local church, knowing they dress traditionally and are very reserved in worship, but were Godly people seeking to be as Biblical and Christ honoring as possible (those people do exist and I encourage to find out who they are and get to know them), then I would not rock the boat by bucking the fashion or worship trends at church. I would not seek to be the sore thumb. I USED to be like that. But, I come to understand that I am responsible for how my actions effect others even if my actions have much truth in them (as yours does).

Also, you’re right. People need to come to God just as they are. But once they are saved, they need to be thinking about how does every aspect of their life (their hearts as well as their appearance) honor God worshipfully? The Bible makes it very clear that modest dress is desirable. 1 Peter 3:3 teaches us not to draw attention to ourselves by the way we dress. There are no hard and fast rules beyond that except that it needs to be culturally appropriate. Sure, flip-flops may be appropriate in Venezuela, but you could hardly make that same argument in the typical mid-american church. This is not only true of clothing, but of worship style as well.

Hope this sheds some light on the subject.