[JMJ333]

Catholicism teaches that sacramental marriage is a lifestyle into which a husband and wife invite God to be a constitutive dimension. The wedding is a celebration which establishes this three-way bond.

And here is a link you may find interesting about Christian marriage:

Sacrament of Marriage

[Sir Francis Dashwood]

P.S. I take marriage out of the traditionally accepted context of modern Christian interpretation for a reason and argue on a strictly secular basis. This way the issue cannot be confused with sectarian dogma or false teaching by those who advocate homosexual monogamy based on some fraudulent ecclesiastical authority...