Don't know of any sermons on the topic, so all anyone can do is think. And having 'thunked', I can say this on the matter:
The extent of how much body modesty there is has changed from generation to generation, from fashion mode to fashion mode.
But there are other issues of modesty that deal with how we control our minds.
Modesty of the eyes is to me, the most difficult one for men, particularly with all the female flesh being revealed currently.
Women have only a little trouble with it, despite the soft drink commercial. Can't remember whether it was Coke or Pepsi, but you women will know what I mean. We like looking at guys, but that doesn't drag us into and out of a bed with a complete stranger in three seconds or less.
Young, wild and free seems fine when you are fifteen. But when you get married, a wife doesn't want her man looking at other woman, for the moment he does, unless he has excellant control of his mind, he will strip whatever pieces of clothing off said female, and in another second, before he can think about what he is thinking about, he's already stepped onto greener pastures, due to a physical defect related to men's hormones. You'll probably have to train yourself not to look at women below the chin if you want to get close to your wife, much less your God. I don't actually know if a man can keep his mind from going where his eyes go.
Is that his fault? Partly. One, men encourage women who have great curves to reveal as much of them as possible. But after a few seconds, that male mind is off the display, and on to another one.
And generally speaking, when a man's wife dresses at the extreme of today's fashion, he's going to blow a gasket over it, because what she is then showing is particularly his to look at, and he doesn't want her showing it off. Hence the common male cry of outrage: "You are not wearing that in public!"
But when the women collude with the men to show off atractive flesh, you've got a problem. When women dress these days, a lot depends on what they are dressing for. In your teens, a young girl dresses mostly to impress other girls, and only secondly, to catch the male eye.
But with each added year between 12 and 25, women dress more to catch a guy's eye than to please their friends. And these days, the competition to catch the male eye is causing women to bare more and more flesh in public.
Somewhere around 25 or so, even the most outrageous single female has recogized that what she wears to work is going to have to be different than what she wears out to dinner.
Do I think women are baring too much flesh these days? Yes, I do.
Do I think men are encouraging them to? Yes, I do.
For despite trying to catch a man's eyes, wearing little more than a bikini to work is not a good idea. I don't think women should wear equivalent of a bikini out at night either, unless they want to be offered money for services.
Bikini's are great at the beach. At that place, there's so much flesh around, it get's boring. Bland. And hence, acceptable. But men, at the beach, you've got a real problem, and keeping your eyes to yourself is nigh impossible.
And don't forget, there is a whole industry built on flesh being showed that Christian women need to avoid, and Christian men need to discourage.
The best place to start is for all women is to wear a bit more, and strive for elegance, not the current fashion. Get a Neiman Marcus Catalog, and try not to scream at the prices.
The best place to start for an unmarried man is to not ask out any young women that aren't striving for elegance. If you don't know what elegance is, get a Neiman Marcus Catalog, and start getting used to the prices.
I won't tell you young men to keep your eyes to yourself. When you are unmarried that's between you and God. When you are married, that's between you and your wife.
Husband's and father's, keep your eyes to yourself, and, well, you've got the check book, or you're supposed to, and you have the responsibility to rein in your women, particularly if it's your daughter of 12.
Unmarried Mom's? Show a good example, and teach your daughter to be on the edge of fashion, striving for elegance. For in the end, elegance will beat out what's on TV anytime.
Was I fashionable in my day, since I am now a "woman of a certain age" and an evangelist?
Unfortunately, yes. I had no lack of men following me around, and at least four of them wanted to marry me. But I paid for it, until I got into my twenties. No one would take me seriously.
Then I dressed for success, New York style in California, and became successful. Yes, I had to work at it, for clothes are merely where you start in business. But great style helps. Slowly change over to Neiman Marcus from Walmart as soon as you can.
But when I married, it was my husband saying, "You are not wearing that in public!"
Is the above the sermon you are looking for? If not, write back about what modesty issues you are thinking of. If it's what you need, use it with my blessing. But if you're a guy in a pulpit, you'll have to say you got it from me, or they'll never take you seriously. And since I've written it, it will be on my website for this Sunday.