 He was ordained to the priesthood for the Diocese of St. Thomas in the Virgin Islands on June 6, 1986, and was appointed Episcopal Vicar for the diocese and Pastor of Holy Family Church.Thomas served as pastor of St. Ann's Church on St. Croix, pastor of Holy Family Church, Dean of the Diocese and the Vicar General.The Diocesan Consulters of the Diocese of St. Thomas unanimously elected Thomas to serve as Diocesan Administrator, a post he filled from August 11, 1992, until he was named as the Third Bishop of the Virgin Islands on October 30, 1993.