Use 'edify' when referring to learning that enhances moral or ethical understanding. The parable was meant to edify the listeners on the virtues of honesty.
Pro Tip 2/3
Intellectual Growth
'Edify' can also refer to broadening one's intellect, not just moral teaching. Studying philosophy has helped to edify my understanding of human nature.
Pro Tip 3/3
Not Just Facts
'Edify' implies a deeper understanding and growth than just learning facts. His mentor aimed to edify him, developing his thinking rather than memorizing data.