In the marriage rite of our Book of Worship, upon announcement of the union we declare, "Those whom God has joined together, let no one separate."
We are moving ever slowly to realize the dream when it will say, "Those whom God has joined together , let no one deny." (note, it is God who is the source of love)
The 2005 General Synod of the United Church of Christ called for full marriage equality. It was seen as a divisive statement by its opponents. But, we pray, it is simply the prophetic word which one day will be the norm.
(I was a delegate at that glorious Synod in Atlanta. Upon the positive vote of over 80% of the delegates, I blubbered like a baby in joy)