Marriage (also matrimony) is one of the holy mysteries (sacraments) in the Orthodox Church, as well as many other Christian traditions. It serves to unite a woman and a man in eternal union before God with the purpose of following Christ and His Gospel and, when possible, raising up a faithful, holy family through their holy union. It is referred to extensively in both the Old and New Testaments. Christ declared the essential indissolvibility of marriage in the Gospel.
Married life, no less than monastic life, is a special vocation, requiring a particular gift or charism from the Holy Spirit, a gift bestowed in the sacrament of Holy Matrimony. The same Trinitarian mystery of unity in diversity applies to the doctrine of marriage as it does to the Church. The family created by this sacrament is a small church.
The Orthodox Church teaches that man is made in the image of the Trinity, and he is not intended by God to live alone, but in a family, except in special cases. And just as God blessed the first family,
commanding Adam and Eve to be fruitful and multiply, so the Church now gives its blessing to the union of man and woman. The mystery of marriage, in the Church, gives a man and a woman the possibility to become one spirit and one flesh in a way which no human love can provide by itself. The Holy Spirit is given so that what has begun on earth is fulfilled and continues most perfectly in the Kingdom of God.