11 Secondly, the mutual duties of husband and wife have been defined, and their several rights accurately established. They are bound, namely, to have such feelings for one another as to cherish always very great mutual love, to be ever faithful to their marriage vow, and to give one another an unfailing and unselfish help. The husband is the chief of the family and the head of the wife. The woman, because she is flesh of his flesh, and bone of his bone, must be subject to her husband and obey him; not, indeed, as a servant, but as a companion, so that her obedience shall be wanting in neither honor nor dignity. Since the husband represents Christ, and since the wife represents the Church, let there always be, both in him who commands and in her who obeys, a heaven-born love guiding both in their respective duties. For "the husband is the head of the wife; as Christ is the head of the Church. . . Therefore, as the Church is subject to Christ, so also let wives be to their husbands in all things."(18)
Source: Arcanum Divinae (Vatican.va)