And thus he commanded them to preach. And thus they became the children of God."
The idea of unity and zero contention is an interesting one. And it leads to becoming the children of God. Thinking about how that works, I wonder if we get it wrong sometimes. We approach unity through trying to agree with each other, arguing and compromising, when instead we should all be trying to unite with God's spirit, who is always feeding us the right answer. :) Not saying that compromise and consensus aren't good things in general... definitely better than fighting. But the true ideal, whenever possible, is unanimity... uniting with the spirit of God, and all reaching the same answer individually. I think that is why becoming one makes us the children of God. It unites us all with him, helping us understand and join in his purposes.
Today, let's work on being one... not just with each other, but with the spirit of God, becoming his children, looking forward to the happy ending, together. :)