What the Kingdom of God means is made clear in the Sermon on the Mount, in the Lord’s Prayer, and in the words, “Enter by the narrow gate!” This means, treat people as you wish them to treat you. This is generally overlooked. You will not be going the way of discipleship until you do for everybody all that you ask from God for yourself, that is, absolute social justice and the peaceable atmosphere of God’s Kingdom. We are envoys of the coming Kingdom of God; we serve only one law, the law of His Spirit.

- Eberhard Arnold God’s Revolution