'Clay' in the Bible

How much more them that dwell in houses of clay, whose foundation is in the dust, who are crushed as the moth!

Remember, I beseech thee, that thou hast made me as clay, and wilt bring me into dust again.

Though he heap up silver as the dust, and prepare clothing as the clay;

Behold, before God I am as thou; I also am formed out of the clay.