Proverbs 31:11 -- "Her husband can trust her, and she will greatly enrich his life."
This trust comes with open communication between each other and with God. When two people marry, they become one. There is no room for secrets or dishonesty. To hurt your spouse is to hurt yourself.
Verse 11 continues with "she will greatly enrich his life." A Godly woman can affect the world in a subtle and magnificent way.
1 Peter 3:1 -- "In the same way, you wives must accept the authority of your husbands. Then, even if some refuse to obey the Good News, your godly lives will speak to them without any words. They will be won over."
A wife of noble character can enrich her husband's life just by her actions. She must accept the Godly authority of her husband, but since they are united as one, it is in agreement and submissiveness with God, not each other. This description of submissiveness is not a battle of power or a bending of will, but an agreement to walk together under the grace of God.
If her husband falls out of step with God, she can draw him back with her perseverance, prayer and tenacity. By being a woman of God, God will work through her to reach others, starting with those closest to you. Not only will she enrich the life of her husband, but all who come near her.