Honor thy father and mother, i.e., live so as to be an honor to them when they are dead.
Franklin expands the traditional command to honour one’s father and mother beyond obedience or respect during their lifetime. He suggests that children can continue to honour their parents after death by living in a way that reflects well on the family and on the values they were taught. Honour is therefore presented as something expressed through conduct rather than words alone.
The saying links personal behaviour with family reputation and moral inheritance. A person’s actions can preserve, strengthen or damage the memory associated with those who raised them. Franklin’s point does not require unquestioning loyalty to family or the repetition of every parental belief. Instead, it emphasises living with enough integrity and responsibility that one’s conduct can be regarded as a credit to those who came before. The broader lesson is that respect for parents can continue through the character and choices of the next generation.