For Jacob being the symbol of labour and improvement, is also the beginning of goodness of disposition, which is signified in Reuben: but the fountain of contemplation of the only wise being, according to which the name of Israel is given, is the principle of being inclined to minister to him; and of such ministry the Levite is the symbol.
As therefore Jacob is found to be the inheritor of the birth-right of Esau, eagerness in wickedness having been defeated by virtuous labour, so also Levi, as one who devotes himself to perfect virtue, will carry off the honours of seniority from Reuben, the man of a good disposition. But the most undeniable proof of perfection is for a man to be a fugitive to God, having abandoned all concern for the things of creation.
 These then, to speak with strict propriety are the prices to be paid for the preserving and ransoming of the soul which is desirous of freedom. And may we not say that in this way a very necessary doctrine is brought forward? Namely that every wise man is a ransom for a worthless one, who would not be able to last for even a short time, if the wise man by the exertion of mercy and prudence did not take thought for his lasting; as a physician opposing himself to the infirmities of an invalid, and either rendering them slighter, or altogether removing them unless the disease comes on with irresistible violence, and surmounts all the ingenuity of medical skill. And in this way Sodom was destroyed, since there was, as it were, no good which could be put in the scale sufficient to outweigh the unspeakable multitude of its wickednesses. So that if the fiftieth number could have been found, according to which an emancipation from the slavery of the soul and complete freedom is proclaimed, or if any one of the numbers below fifty which the wise Abraham enumerated descending at last down to ten, the number peculiar to instruction, the mind would not have been destroyed in so inglorious a manner. We ought at times to endeavour as far as possible to preserve those who are not on the point of being utterly destroyed by the wickedness that is in them; imitating good physicians who, even if they see that it is impossible for those who are sick to recover, nevertheless apply their remedies with cheerfulness, lest it should appear that it was owing to
 
their neglect that the affair did not turn out as it was desired. And if ever so slight a seed of good health is seen, this is to be cherished as a spark of fire with all imaginable care; for there is hope that if it can have its duration protracted and its strength increased the man may for the future have a better life and one more free from danger.