Justice is commonly inspired with fear, as on the other hand injustice is rash and self-confident. But the proof of a fear of God is the not giving up more to, or guiding one's self more by one's own reason than by God. And above all other men it was natural for that man who had seen the whole earth suddenly become an immense sea, to suspect that it might be possible that the same misfortune would again return. Besides this, he also gave a thought to the corresponding consequence, namely, that as he had entered into the ark at the command of God, so it was fitting that he should also leave it at the command of the same being; for let no one believe that he can ever do anything perfectly unless God himself guides him by his preventing precepts.
Philo on Noah and How Justice Is Born From Reverence
The Midrash of Philo 15:2