In this episode, we learn positive mitzvah #4, which is to fear and respect Hashem.
How can one demonstrate his or her fear of God? When one is in a position that he or she can do something wrong and no one will ever know, for example, behind closed doors --
if one refrains from sinning and chooses to act properly, that is a way of expressing fear & respect of God.
The two additional ways to fulfill this mitzvah: