Career
David William Valencia Antonio was ordained a priest on December 1, 1988. On June 15, 2011, Pope Benedict XVI appointed him Auxiliary Bishop of Nueva Segovia and Titular Bishop of Basti. He was consecrated bishop on August 26, 2011 by Giuseppe Pinto, Apostolic Nuncio to the Philippines.
Company-consecrators were Ernesto Antolin Salgado, Archbishop of Nueva Segovia and Orlando Beltrán Quevedo, Archbishop of Cotabato.