'Earthen' in the Bible

And he said to them, Behold, as ye enter into the city a man will meet you, carrying an earthen pitcher of water; follow him into the house where he goes in;

But we have this treasure in earthen vessels, that the surpassingness of the power may be of God, and not from us:

But in a great house there are not only gold and silver vessels, but also wooden and earthen; and some to honour, and some to dishonour.