On the Giants (56-57)

but Moses, when he had arrived at that number of years, departed from mortal life to another. How, then, can it be natural for men who are guilty to live an equal length of time with the all-wise prophet? for the present, it will be sufficient to say this, that things which bear the same name are not in all cases alike, but very often they are distinct in their whole genus; and also that which is bad may have equal numbers and times with what is good, since they are represented as twofold, but still they have their respective powers, distinct from one another, and as remote and different as possible.

And we shall hereafter institute a more exact discussion of this period of a hundred and twenty years, which we will however postpone, till we come to an examination of the whole life of the prophet, when we have become fit to be initiated in it, but at present we will discuss what comes next in order.