Deacon William B. Posey has been a member of Mt. Nebo Pentecostal Church all his life. He is the son of the late founder and Overseer Vivian I. Posey.  His life has been spent serving the Lord.  As a child, he was an active member of the Y.P.W.W.  He was also involved in all the choirs and worked in the Vivian I. Posey Society which helped many in the neighboring communities.

Currently, he is the chairman deacon and a trustee of Mt. Nebo.  Deacon Posey is not only the First Man of the church but he also enjoys ministering to the congregation.  He is a true armor bearer for Pastor Maryann Posey and is committed to his own motto, "No Soul Left Behind."