'Earthenware' in the Bible

But we have this treasure in earthenware jars, in order that the extraordinary degree of the power may be from God and not from us.

Now in a large house there are not only gold and silver bowls, but also those of wood and clay, some for honorable use, some for dishonorable.

And he shall be their shepherd, ruling them with a rod of iron, just as earthenware jars are broken to pieces; and his power over them shall be like that which I Myself have received from My Father;