Proverbs 31:11

The heart of her husband doth safely trust in her, so that he shall have no need of spoil.

The verse portrays a wife in whom the heart of her husband can place safe and secure trust.
Her trustworthiness lies in being faithful and dependable, doing him good and not harm or evil throughout her life.
That dependability includes practical competence in household duties, since inefficiency in this area can wreck a family’s happiness.
Hannah, the wife of Elkanah, fulfills this description, with piety and devotion, humility, conscientiousness, and firm reliance on God as the ruling traits that make her trustworthy.