Archlute
Puritan Board Senior
I believe the power being talked about in this definition is not about the clothes one wears but about (in this case) the woman behind the clothes.
Now I'm even more confused. Are you only preaching to women? Modesty is something commanded to both genders and the passage that you're preaching on doesn't seem directed specifically towards women.
It is significant that the apostles only explicit admonitions regarding modest dress pinpoint the women of the church. This strikes our egalitarian culture as sexist, but so does restricting women from ministerial office.
This is not to say that men are exempted, but if we believe in the full divine authority and intention of the Holy Spirit speaking in Scripture in training us up for the Christian life, that emphasis should not be seen as odd, accidental, or a modern embarrassment.