Love as Jesus Loves
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.
Jesus loves mankind with a dual affection. He lived on earth as a twofold personality— human and divine. As the Son of God he loves man with a fatherly love—he is man's Creator, his universe Father. As the Son of Man, Jesus loves mortals as a brother—he was truly a man among men. ~ The Urantia Book, 140:5.1