While The Urantia Book has quite a few references for the Golden Rule, there is no new description of it—it remains "Do unto others as you would have others do unto you, " but the teachings of The Urantia Book, and more especially, the teachings of Jesus elevate the Golden Rule and add a new dimension to it. Jesus referred to the Golden Rule as the Rule of Living.
Here are a few more passages which speak of this age-old "rule of living:"
From the Sermon on the Mount to the discourse of the Last Supper, Jesus taught his followers to manifest fatherly love rather than brotherly love. Brotherly love would love your neighbor as you love yourself, and that would be adequate fulfillment of the "golden rule." But fatherly affection would require that you should love your fellow mortals as Jesus loves you. (140:5.1)
... Jesus' morality was always positive. The golden rule as restated by Jesus demands active social contact; the older negative rule could be obeyed in isolation. Jesus stripped morality of all rules and ceremonies and elevated it to majestic levels of spiritual thinking and truly righteous living. (140:10.5)
In the kingdom of the believing brotherhood of God-knowing truth lovers, this golden rule takes on living qualities of spiritual realization on those higher levels of interpretation which cause the mortal sons of God to view this injunction of the Master as requiring them so to relate themselves to their fellows that they will receive the highest possible good as a result of the believer's contact with them. This is the essence of true religion: that you love your neighbor as yourself. (180:5.7)
This Truthbook page reveals the Golden Rule as taught by many earth religions, including Christianity.