He became a pastor when he grew up, and has since served as chairman of the Taiwan Gospel Association, chairman of Tainan College of Theology, and chairman of the general synod of the Taiwan Presbyterian Church.
感恩之餘，周金耀立志獻身教會，日後成為一名牧師，曾擔任台灣福音聯誼會主席、台南神學院董事長、台灣基督長老教會總會議長。