Chapter 9 insists that parents cannot reproduce a life they do not practice. If they want children who honor God, love one another, and live publicly for others, they have to embody those patterns first.
This makes parental formation environmental before it is verbal. Children are not mainly persuaded by ideals; they are inducted into a way of life they can watch, admire, and imitate.
The note scales beyond parenting. Any leadership that demands what it does not embody weakens its own authority at the root.