Humanity is best served by our “better angels.” People often personify angels in the artistic imagery of winged creatures wearing dazzling white outfits, and that imagery is somewhat validated by Scripture and Tradition. But angels also take other forms in the Bible, especially and perhaps most often the form of human beings, as alluded to in Hebrews, “Be not forgetful to entertain strangers: for thereby some have entertained angels unawares (Hebrews 13:2 KJV).