LONDON – Poets as diverse as William Blake and Yehuda Amichai have sung the praises of the heavenly Jerusalem, a land without strife or rancour, war or bitterness, envy, acquisitiveness or hatred. Mankind now has the historic opportunity to take a giant step towards making the present day Jerusalem acquire, at least in some of its aspects, the earthly prototype of the heavenly Jerusalem. For once we can see whether the work of imams, rabbis and priests has born fruit. The secular politicians may be the ones doing the negotiations and ordering the compromises but it is the teachers of the three great deistic religions who have been exerting their mandate to teach compassion, goodness, tolerance and brotherhood. These traits of virtue, as common to them all as is their God, now will be tested in the hottest of fires. Have their peoples imbibed the true message of their faiths? Or...