On the Giants (46-47)

And it is not safe for subjects to do wrong in the presence of their rulers, nor for slaves to err before their masters; for when the punishers are near, those whose nature is not quick at submitting to admonitions are held in restraint and order by fear;

for God, having filled everything with himself, is near at hand, so that he is looking over everything and standing by, we being filled with a great and holy reverence, or if not with that, at all events, having a prudent fear of the might of his authority, and of the fearful nature of his punishment, which cannot be avoided, whenever he determines to exert his punishing power, shall desist from doing wrong. In order that the divine spirit of wisdom may not be inclined to quit our neighbourhood and depart, but that it may remain a very long time with us, as it did also with the wise Moses;