original: He chose as his episcopal motto ("Obedience and Peace"), which became his guiding motto.
simplifications: His guiding motto is ("Obedience and Peace"). His guiding Episcopal moto was "Obedience and Peace". He chose ("Obedience and Peace") as his episcopal motto. It became his guiding motto. His chosen motto "Obedience and Peace" became his guiding motto. He chose as his episcopal motto "Obedience and Peace." It became his guiding motto. He chose "Obedience and Peace" as his motto. He chose ("Obedience and Peace") as his episcopal and guiding motto. "Obedience and Peace" became his guiding motto. "Obedience and Peace" was his episcopal motto and this became his guiding motto. He chose his guiding, episcopal motto to be "Obedience and Peace".