Among the many mistakes made by supporters of same-sex “marriage” is their view that marriage in the Bible rests on a few isolated passages of Scripture. A WikiHow page says,
Actually, the Bible says little on the subject; the usual citations are from Leviticus and Romans; nothing about it is mentioned in the 10 Commandments, and Jesus is silent on the subject.
Lately JB Chappell has been making a similar point. But if they're going to say that Jesus is silent on same-sex “marriage,” why don't they go the whole nine yards and say that everyone and their kids were silent on it until less than a generation ago?
If marriage is known to be what marriage is, then there is no need for Jesus, Paul, Augustine, Aquinas, Luther, or anyone else to talk about it not being something else.
Three or four people sitting in a room may talk about the furniture, the family photos, or the artwork on the wall. From a recording of their conversation you could gather a lot about the kind of home they were in. You would be surprised, however, to hear the topic turn to, “Where's the door?!” And you would surely conclude that something drastic had happened to confuse the situation. Maybe they're in an earthquake zone and the lights went out as the room started shaking. Maybe someone lobbed in a smoke bomb.
No biblical thinker ever addressed gay “marriage” until someone darkened the room with confusion over what marriage is. But there was enough conversation on marriage that no one could doubt what they were talking about.
Jesus spoke about marriage being between a man and a woman (Matthew 19:4,5). Paul spoke of it in the same terms in 1 Cor. 7:1-16. The writer to the Hebrews (Heb. 13:4) instructs us to hold marriage in honor.
In Ephesians 5:25-33 Paul adds theological significance to marriage: it is a reflection of the relationship between Christ and the Church, a picture he also alluded to in 2 Cor. 11:2. This was not just his teaching. In several parables Jesus spoke of weddings as a picture of his return, and in Revelation 19:6-9, the feasting after his return is called “the marriage supper of the Lamb.” The Church is termed the “bride of Christ.”
None of this makes the slightest sense if marriage is open to forms other than man-woman. Marriage is a union of opposites, coming together to create a unity unlike either partner on his or her own. Every more-than-passing mention of marriage in the Bible assumes this. It is part of the furniture of marriage, and it is the decoration that makes it beautiful as well.