He spoke soberly about the consequences of his actions.

When speaking at a funeral you should speak soberly and carefully>

It is important to be sober when getting into a car and driving.

The boy was sober, and was just being himself.

A couple of possibilities :

SOBERLY (in a serious manner)

SOVEREIGNLY (as by a governor, ruler or king)

In his description of the clerk the word threadbare tells the audience that this character is poor. The reason for his situation is that he did not get any income from the Catholic Church

• Do not mock the old

• Do not mock the sick

• Do not mock one who has sinned

• Do not set a bad example

• Do not interrupt the speech of another

• If you are asked something, reply soberly and without affection or flattery or prejudice to others

• Do not make wry faces

• Wherever you go, walk with a peaceful air

• Only nobles may carry a fan

• Do not complain