Franklin uses the church bell as an image of someone who directs others towards instruction but does not apply that instruction personally. The bell summons people to hear the sermon, yet cannot itself listen or change its conduct. Applied to human behaviour, the comparison criticises those who readily advise or correct others while neglecting the same standards in their own lives.

The saying is therefore concerned with consistency between what a person recommends and how they behave. It does not imply that advice is worthless whenever the person giving it falls short, since sound guidance can remain valid despite personal inconsistency. Franklin’s broader point is that moral instruction carries greater weight when accompanied by self-examination and practice. People who urge others to improve should also consider whether they themselves are acting on the principles they promote.