From this discussion we may clarify two aspects of the evil that apparently exists in the world now. The first is that it does not emerge from another domain or power (God forbid) that could exist against Him. The second is that in the end it will be good. In the end it will certainly be good… for it cannot stand against His goodness, not even in the sense explained earlier whereby a will that He brought into being might limit Him. In the end, it will be good.
Moreover, it is precisely in this way that Eyn Sof makes known to us His true oneness. And then it will be revealed that there is no other domain but His. Had He simply given His creatures an immediate understanding of His perfection, they might recognize His complete perfection (inasmuch as He revealed it to them) and understand His great majesty and glory. But this would not have refuted the doctrine of the unbelievers in earlier generations that it is impossible to understand a thing except from its opposite. They argued that if we say there is one God who is the ultimate good, there must (God forbid) be another who is the ultimate evil. For if it were not so, there could be no knowledge of the ultimate good.