In the Church there are two types of altars, stone and clay.
These terms are metaphors for a system by which men may remain freesouls under God the Father in Heaven with no other gods before him.
Every man is an altar of earth. The Hebrew word for earth when talking about altars of earth is "adamah". We are all sons of Adam. Each man plays his part in the kingdom of God by being a conduit for the sacrifices of his family in the practice of "pure religion".
"Pure religion and undefiled before God and the Father is this, To visit the fatherless and widows in their affliction, [and] to keep himself unspotted from the world." James 1:27
The stone altars are also men. The living ministers of the Church chosen by men, and ordained of God are the living altars of stone of the kingdom. They are titular leaders and benefactors who do not exercise authority over the contributing of the people but minister their offerings for the good of those they serve.
The church is an alternative government based on "the perfect law of liberty" composed of families in congregations, and ordained ministers who are servants of servants facilitating faith, hope, and charity that sets men free.
It is the mission of His Holy Church to teach the ways of Christ and document the boundaries of the Church, congregations, and the families as a witness of the the world of the Kingdom of God at hand.