Kevin DeYoung, an RCA Michigan pastor, is starting a good blog series on it, here.
And John Piper quoted Wolfhart Pannenberg on this, lately. It is so fitting, I quote it below. Keep in mind this guy Pannenberg is something of a liberal theologian, German contemporary, all the rage with the liberal professor types in the RCA. I hope they take heed to him, and not to the political correctness prevailing in many parts of the RCA.
"Here lies the boundary of a Christian church that knows itself to be bound by the authority of Scripture. Those who urge the church to change the norm of its teaching on this matter must know that they are promoting schism. If a church were to let itself be pushed to the point where it ceased to treat homosexual activity as a departure from the biblical norm, and recognized homosexual unions as a personal partnership of love equivalent to marriage, such a church would stand no longer on biblical ground but against the unequivocal witness of Scripture. A church that took this step would cease to be the one, holy, catholic, and apostolic church." ("Should We Support Gay Marriage? No")