I don't believe it does, at least not in the way someone asking that might think.
I was discussing this issue with a friend recently and it got me to thinking ... and searching scripture to see if it in fact did address the issue.
It doesn't ... and it does.
Shew! Good thing it doesn't say we have to dress up and look a certain way because I'd be in trouble. If you go to my church you know I'm always in jeans.
1 Peter 3:3 "And let not your adornment be merely external-- braiding the hair,
and wearing gold jewelry, or putting on dresses; 4 but let it be the hidden
person of the heart, with the imperishable quality of a gentle and quiet spirit,
which is precious in the sight of God.
Let me break this down into two parts and then throw a thrid one in just for fun.
From what I can tell from scripture, the people who believe that we should wear our "best" for God are mistaken. Its an example of people following the traditions of man rather than what the Bible really says. Traditons are just that - ways of believing or acting that the majority of people follow. Traditionally people believed that you should dress up for important thing - like church, or a date, or an evening out. Traditionally people believed that smoking was a cool thing to do too - until we found out it was killing us at an alarming rate. The thing about traditions are that they are hard to change. Being creatures of habit, we hate change.
So what's wrong with the traditon of wearing your best to church? Nothing really. I can see how it might become a problem, but in and of itself there's not a thing wrong with it.
Where it might become a problem is when we start to make it an issue. That happens when we get more concerned about what's on the outside than what's on the inside. And that's an easy thing to do - just look at where we're at - people judging others for how they dress when they come to church - can there be anything more absurd? And yet its so accepted in a lot of church circles.
I think this is especially difficult for women, which is probably why scripture seems to address women on this rather than men. Women like to compare. And that leads to all sorts of bad things.
And I've got to wonder about people who can't afford nicer things. What about them? Would they really feel comfortable (welcome) in a place where they can't fit in because of the clothes they wear?
I made the decision a long time ago that I would never wear a dress to church on Easter Sunday again. I did so for a number of reasons but one of the main ones was that Easter seemed to be more about a new dress than about a risen Lord. I got tired of that and chose not to be a part of it anymore.
That leads me to Part 2
Its all about what's on the inside. Shouldn't that be obvious by now? I mean really, why are we still having this discussion? Shouldn't we have grown up past this by now? Its not about the temporary things like clothes - its about the internal and eternal things. If it can rot, its not important. Clothes, hair, tattoos - they're all going to rot. Our souls however will be around for eternity in one place or another. We really should care a whole lot more about what we're wearing on the inside. And people wear some pretty crappy stuff to church. They wear bitterness, jealousy, hurt feelings, big egos, and gossip to church all the time. We've got too much nasty stuff all over our insides to be worried about what's on the outside.
Now for the third part ...
Whoever said the church was a building anyway? I've always found it sadly funny that people feel like they can't say or do certain things in the sanctuary but they can say or do them outside of the sanctuary. What's that about anyway? I know, I know, its about respecting God. But doesn't it make sense that if you really respect God you won't have the change your behavior depending on the place you are at? The church has never been a building - its always been a Body. The church is YOU and ME. You are the church at work or at the Reds game, or anywhere else you take yourself.