Reading the speech today, I am reminded of why many of us saw this unlikely figure a couple of years ago and concluded that he was uniquely capable of guiding the West - and East - away from a catastrophic conflict that we learned, by bitter experience, could not be won by force of arms alone. Arms remain in Iraq and Afghanistan, but this speech buttressed that hard power with a soft and vital appeal to the masses below - the people who determine whether a global insurgency succeeds or fails. My reader is right: no other figure in global politics could have done this. At its heart, the speech sprang, it seemed to me, a spiritual conviction that human differences, if openly acknowledged, need not remain crippling. It was a deeply Christian - and not Christianist - address; seeking to lead by example and patience rather than seeking to impose from certainty:

I am convinced that in order to move forward, we must say openly the things we hold in our hearts, and that too often are said only behind closed doors. There must be a sustained effort to listen to each other; to learn from each other; to respect one another; and to seek common ground. As the Holy Koran tells us, "Be conscious of God and speak always the truth." That is what I will try to do – to speak the truth as best I can, humbled by the task before us, and firm in my belief that the interests we share as human beings are far more powerful than the forces that drive us apart.

"Be conscious of God and speak always the truth." The man has, for a politician, done this more powerfully than any president I have known since Reagan. And his vision is Reagan's: a world without nuclear weapons, in which our differences are occasions for healthy and human interaction, not terror, torture and mass destruction. To criticize this speech as not tough-minded enough is to miss the point: it is precisely by opening ourselves up, by showing who we really are, by dropping the pretenses and brittleness of cultural conflict and taking up the challenge of our faiths at their best: peace, and respect - that we can win the war against Islamist terror and tyranny. This does not mean going soft on al Qaeda, which remains as evil as it ever was:

I am aware that some question or justify the events of 9/11. But let us be clear: al Qaeda killed nearly 3,000 people on that day. The victims were innocent men, women and children from America and many other nations who had done nothing to harm anybody. And yet Al Qaeda chose to ruthlessly murder these people, claimed credit for the attack, and even now states their determination to kill on a massive scale. They have affiliates in many countries and are trying to expand their reach. These are not opinions to be debated; these are facts to be dealt with.

Taking on the 9/11 conspiracy theories and challenging Islamist anti-Semitism was an integral part of this speech, what makes it a form of truth-telling, not pablum-spreading:

Tomorrow, I will visit Buchenwald, which was part of a network of camps where Jews were enslaved, tortured, shot and gassed to death by the Third Reich. Six million Jews were killed – more than the entire Jewish population of Israel today. Denying that fact is baseless, ignorant, and hateful. Threatening Israel with destruction – or repeating vile stereotypes about Jews – is deeply wrong, and only serves to evoke in the minds of Israelis this most painful of memories while preventing the peace that the people of this region deserve.

By simultaneously expressing empathy for the Palestinians - the "other hand" Hewitt could not tolerate - Obama has single-handedly given the US a chance to return to the even-handedness that is essential if the US is to save Israel from its own understandable fears. Notice too the appeal to the next generation:

I want to particularly say this to young people of every faith, in every country – you, more than anyone, have the ability to remake this world. All of us share this world for but a brief moment in time. The question is whether we spend that time focused on what pushes us apart, or whether we commit ourselves to an effort – a sustained effort – to find common ground, to focus on the future we seek for our children, and to respect the dignity of all human beings.

He was admant on democracy but careful not to be seen dictating a Western version onto a Muslim world; he was clear about women's rights, without denigrating those who choose a traditional role; above all, he gave a spiritually ecumenical address - concluding with the truth that we all worship the same God because there is only one God. On this all the Abrahamic faiths agree. We need to listen to this God if we are to obey God's commandment to love one another and seek healing for the world.

At many other times in history, this sentiment might seem sappy or air-headed or unrealistic. Not now. This spiritual appeal is the heart of coldblooded realism in this frighteningly dangerous world. Either we learn to respect one another or we shall perish.

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