What does Proverbs 31:16 mean?

Women in Old Testament cultures were often—but not always—disallowed from directly purchasing or owning property. However, the trusting husband of a godly woman (Proverbs 31:10–12) could leave those matters to her and sign off on her choices. This verse speaks to her business sense and responsibility. Rather than being hasty, or casual, she applies common sense and careful thought to the transaction. After buying the field, she uses it for a productive purpose. In this case, that is represented as a vineyard.

In a modern context, married couples should discuss and decide how they will spend their household finances and who will handle them. Even if the husband is the primary source of income, it's possible the wife may be the better manager of finances. Ideally, the husband can trust her to write checks, save, and invest. Of course, both husband and wife should view any income as stewardship, and honor the Lord with appropriate offerings. This verse commends responsible use of resources along with other valuable character traits (Proverbs 31:13, 15, 19¬–20).