Peter speaks about (and to) godly women in his first letter to the saints scattered abroad. There are six verses in this exhortation section. In verse 4, Peter places his emphasis in teaching where it belongs for each saint; there is to reside in the heart something of great price that has value greater than that which can be seen by any person, especially males (in this context).
To begin, Peter (writing by the authority of the Holy Spirit) said that each godly woman must be in subjection to her husband. Not only is this God-ordained, but if the husband is not what he ought to be, then the life and demeanor of godly woman can go a long way in teaching and converting him to the Lord’s way. What the husband is to see in his godly wife is that which is to reside within the heart (cf. Colossians 3:15-16; Matthew 12:33-37). She will live her life in reverent respect, fear, and obedience to the Lord’s holy way, putting little emphasis on any outward attractiveness. This is not to say that she is to look homely, or to fail in presenting herself with some degree proper arrangement in cosmetics (if she chooses) and clothing. It is to say, though, that these things are temporal and, in the end, will just vanish away because all things temporal do such.
What is to be within her is her love for both God and her husband. Her love, first, to the Lord is without competition or compromise. This kind of love arranges the body and soul into proper alignment (if you will). To start with some other love is to be out of balance and an invitation to ultimate heartache. Second, her love toward her husband should be well-placed within. This prevents longing eyes elsewhere, and focuses attention upon the relationship between her and him. If the husband knows that his wife has his interests in mind (Philippians 2:1-8), then there is no telling how she can change the world in which they both live.
If she has some degree of uncertainty about how best to implement the words of the Holy Spirit (as written by Peter), then let her take note of the godly women who went before her. She can learn from them, taking note of both their failures as well as their strengths.