The sacrament of Matrimony is a divine institution founded by God that unites Christian spouses in a covenant of love and fidelity, making them one with each other and with Christ (Eph 5:31, CCC 1601-1603, 1638). The matrimonial covenant is a partnership of the whole of life, ordered toward the good of the spouses and the procreation and education of offspring (CCC 1601). It sanctifies the union between baptized persons, transforming human love into a total and lifelong commitment of spiritual communion and self-giving (CCC 1644).

The formation of the marriage bond relies on the exchange of consent, which is the indispensable element that makes a marriage (CCC 1626). This consent must be a free and uncoerced human act that binds the spouses to one another, finding its fulfillment in their union as one flesh (CCC 1627). Because no human power can substitute for this consent, its absence renders the marriage invalid (CCC 1628).

Once established, the marriage bond is irrevocable and indissoluble, as it is guaranteed by the fidelity of God (CCC 1640). This indissolubility is a divine institution rooted in the original intention of the Creator, who decreed that what God has joined, no human being must separate (Genesis 1:27, Matthew 19:4-6, CCC 1603, CCC 2364). This requires total fidelity from both spouses, reflecting the covenantal love of God and the fidelity of Christ to his Church (CCC 1647-1648).

Authentic married life is most closely modeled after the relationship between Christ and the Church, serving as an efficacious sign of spousal love (CCC 1613, 1617). Consequently, spouses are called to be subordinate to one another out of reverence for Christ (Eph 5:21). And, husbands are called to love their wives sacrificially, just as Christ loved the Church and gave himself up for her (Ephesians 5:25-30).

The purpose of marriage extends beyond the union of the couple to include fruitfulness, as children are the natural and desired outcome of conjugal love (CCC 2366). Marriage is thus a participation in God’s creative power, where spouses cooperate with His love by transmitting human life and educating their children (CCC 2367). This twofold obligation of fidelity and fecundity governs conjugal love and cannot be separated without compromising the couple’s spiritual life (CCC 2365).

The Church requires that a sacramental marriage be celebrated in the public liturgy to ensure certainty and protect the fidelity of the spouses (CCC 1631). In the Latin Rite, this celebration typically occurs during Holy Mass, uniting the consent of the spouses with the offering of Christ for his Church (CCC 1621). To receive the sacrament fruitfully, spouses are encouraged to approach the sacraments of Penance and the Eucharist. And finally, Canon Law requires that the validity and licitness of the marriage be ensured through proper investigation by the pastor or local ordinary before the celebration takes place (Can. 1066-1067).