In the covenant of marriage, a man and a woman establish between themselves a life-long partnership. The sacrament of matrimony. The celebration of marriage. Matrimonial consent. Annulments and impediments to marriage. Mixed marriages. The marriage bond. The grace of matrimony. Eros and agape. The goods and requirements of marriage: a) The unity and indissolubility of marriage; b) the fidelity of conjugal love; c) openness to fertility. Adultery, divorce, and other sins against the dignity of marriage.