Complex sentence: Echevarría Rodríguez began work as the personal secretary of Josemaría Escrivá before being ordained to the priesthood for Opus Dei on August 7,1955.
Split into simpler sentences: Echevarría Rodríguez began work as the personal secretary of Josemaría Escrivá before being ordained to the priesthood. He was ordained for the Opus Dei on August 7,1955.