The book ends with a description of the "capable wife." She is the perfect opposite of the adulteress and the foolish woman described earlier in Proverbs—she puts in practice the advice given by Proverbs, whereas they totally ignore it.
She also takes Wisdom, who had formerly been seen as a kind of angelic presence or an abstraction, and makes it concrete—she embodies Wisdom. In this way, the ode to the "capable wife" provides a fitting end to Proverbs. It takes the recommendations and the philosophy that Proverbs has made and then provides an ideal example of someone who's able to take that advice and flourish.