Pope Shenouda III
The Lord Jesus Christ did not write a gospel Himself nor did He leave a written gospel, yet He was preaching and teaching, leaving His words as spirit and life (John.6: 63) for the people who later spread them. When the Lord began His teaching and preaching, He said to the people: "The time is fulfilled, and the kingdom of God is at hand. Repent, and believe in the gospel" (Mark.1: 15). There was no written gospel (Good News) but there was preaching of the Good News representing the oral Gospel or the Divine teaching which was taught through entrustment. The same meaning applies to the Lord's words to His disciples: "Go into all the world and preach the gospel to every creature" (Mark. 16: 15). That command was not within the written boundary.