1 Peter 3:1-6

[1] Likewise, wives, be subject to your own husbands, so that even if some do not obey the word, they may be won without a word by the conduct of their wives, [2] when they see your respectful and pure conduct. [3] Do not let your adorning be external—the braiding of hair and the putting on of gold jewelry, or the clothing you wear—[4] but let your adorning be the hidden person of the heart with the imperishable beauty of a gentle and quiet spirit, which in God's sight is very precious. [5] For this is how the holy women who hoped in God used to adorn themselves, by submitting to their own husbands, [6] as Sarah obeyed Abraham, calling him lord. And you are her children, if you do good and do not fear anything that is frightening. (ESV)