They wrote about his life and ministry. There are symbols for these four gospels. According to some study Bibles, the symbol for Matthew is the lion. The lion represents strength and authority. The bull symbolizes Mark. The bull represents service and power. A figure of a man symbolizes Luke which stands for wisdom and character; and an eagle is John’s symbol representing deity.
When you read Matthew, notice that he always used the key expression “that it might be fulfilled.” He seems to quote from the Old Testament to show that Jesus was the promised Messiah of the Old Testament prophecy. Matthew 21:4 said, “All this was done, that it might be fulfilled which was spoken by the prophet, saying, (5) Tell ye the daughter of Sion, Behold , thy King cometh unto thee, meek, and sitting upon an ass, and a colt the foal of an ass.”
Mark’s key expression is “immediately.” Mark 6:50 said, “And immediately he talked with them, and saith unto them, Be of good cheer: it is I; be not afraid.”
Luke’s key expression is “it happened” or “it came to pass.” Luke 2:15 said, “And it came to pass, as the angels were gone away from them into heaven, the shepherds said one to another, Let us now go even unto Bethlehem, and see this thing which is come to pass, which the Lord hath made known unto us.”
John’s key expression is “believe.” John 20:31 said, “But these are written, that ye might believe that Jesus is the Christ, the Son of God; and that believing ye might have life through his name.”
Each Gospel writer seemed to have written about Jesus for a different purpose. Together, the four Gospels teaches us who Jesus Christ is. To me, they are one.

Great article on the four gospels and interesting.
Glad you enjoyed it!
Very insightful, that part about their “key expressions.” It’s wonderful to find articles like these on the Internet, and written by lay people! Good job!
Not my thing but informative just the same.
Thanks Beatrice and Lizzie!
Gail
You are inspired! Hats off to an article with lots of insights.
Keep the faith, keep writing, keep asking the Holy Spirit to direct you. You are His Internet missionary even as I am. God Bless sister!
Thanks for that article Gail! The “keys” showed a level of maturity and discernment. Keep them coming!
Catelin,
God bless you to and thank you for your kind words.
a.king,
Thank you too. Thanks for your comments. I will keep them coming.
Thanks for the article. I don’t read the bible too much so this was interesting.
Hey Johnson! Glad you found it interesting.
Read the article about Bible Prophecy “Amazing Facts” at http://digg.com/users/Gnstories/news/dugg.
That was interesting, I feel your enthusiasm and feel inspired!
Thanks Lucy. I’m glad.