The official ideology of Yom Kippur is found in the words of Resh Lakish, a third century Talmudic sage, and can be found in the Babylonian Talmud, Yoma 86b–“Great is repentance, for the deliberate sins of one who repents become as inadvertent ones.”

In effect the argument is that Teshuvah, the action of repenting, causes the person to allow their real self to emerge, and as they move into a new direction they show that true self. The person therefore who sinned deliberately can be understood to have been not really themselves, and so, when they become their real self, those sins are clearly inadvertent – and inadvertent sin cannot be punished or judged in the same way as deliberately flouting the rules of behaviour.

It is a theology of new beginnings and a clean slate, teaching us that renewal is always possible; counteracting the guilt and despair we may be feeling about the bad choices we have made with the belief that good intentions for the future must redeem us and make up for the past.

It is certainly an attractive proposal, but the reality is that we can’t rely on Teshuvah to remake the world exactly as it was or should be. Teshuvah may be a potent force but it is not an all-powerful one. Even if it can change our deliberate sins into the more manageable and less terrifying category of inadvertent ones, it cannot erase the effects of those sins. If we were to truly face reality we would have to say that repentance is not, and never can be a substitute for responsibility. And more than that, we would have to acknowledge that some things cannot be rectified, however mortified and ashamed we may be to have committed them. What is done cannot always be undone, and the mark it leaves on our lives (and those of other people) will not be erased.

The word Kippur is related to the verb “to cover over”. When we try to make Teshuvah and to uncover our real and ideal self as we turn towards a good way of being in the world, we also cover over the mistakes we made and the bad actions we did. They do not go away, but we take away their power to hold us back, through our shame or our fear. I do like the notion of Teshuvah providing us with a new start, of the freshness of starting again unencumbered by a past that has the power to haunt us, but I shudder a little at the notion of a rebirth. For we are not in any way born again through our actions over the Yamim Noraim, we continue to live and continue to remember and continue to be the person who has real responsibility for our lives, but at the same time we cover over and leave behind the place that is stopping us from going forward into our new and more true way of being. Repentance is not a substitute for responsibility – repentance gives us the means to become much more responsible for who we are, and the power to use that responsibility to change not only ourselves but also the world around us.