Philo Judaeus De Mutatione Nominum 124

[124] And a proof of this is to be gathered from the fact that the mind is changed, not by being biassed and inclining in one particular direction or the other, but wholly and entirely in the direction which is good; and that, even if there is any thing which is not very praiseworthy indeed, it makes that to depart by arguments conducive to repentance; for, having in this manner washed off all the defilements which ¹ polluted it, and having availed itself of the baths and purifications of wisdom, it must inevitably look brilliant.