Complex sentence: In 1970, on the thirteenth anniversary of his selection as pastor of the Ras Beirut Baptist Church, he resigned, returning to Haigazian College to complete a B.A. in English literature, which he completed in 1971.
Split into simpler sentences: In 1970, on the thirteenth anniversary of his selection as pastor of the Ras Beirut Baptist Church, he resigned. He went back to Haigazian College to complete a B.A. degree in English literature which he completed in 1971.