Complex sentence: He was ordained by the Free Presbyterian Church of Scotland in 1979 and served as a minister in Oban (1979-1986) and Edinburgh (1986-1989), including as Moderator of the Free Presbyterian Church's Southern Presbytery.
Split into simpler sentences: He was ordained by the Free Presbyterian Church of Scotland in 1979. During the latter period, he served as Moderator of the Free Presbyterian Church's Southern Presbytery.