Though some say that the New Testament was written 100-300 years  after Christ died, the truth is that it was written before the close of  the first century by those who either knew Christ personally, had  encountered him, or were under the direction of those who were His  disciples.In the article When were the gospels written and by whom?,  I demonstrated that Matthew, Mark, and Luke were all written before 70  A.D.  Basically, the book of Acts was written by Luke.  But Luke fails  to mention the destruction of Jerusalem in 70 A.D., nor does he mention  the deaths of James (A.D. 62), Paul (A.D. 64), and Peter (A.D. 65).   Since Acts is a historical document dealing with the church, we would  naturally expect such important events to be recorded if Acts was  written after the fact.  Since Acts 1:1-2  mentions that it is the second writing of Luke, the gospel of Luke was  written even earlier.  Also, Jesus prophesied the destruction of the  temple in the gospels: "As for these things which you are looking at,  the days will come in which there will not be left one stone upon  another which will not be torn down," (Luke 21:6, see also Matt. 24:2; Mark 13:2).   Undoubtedly, if Matthew, Mark, and Luke were written after the  destruction of the Temple, they would have included the fulfillment of  Christ's prophecy in them.  Since they don't, it is very strong  indication that they were written before 70 A.D.
The gospel of John is supposed to have been written by John the apostle. It is written from the perspective of an eyewitness of the events of Christ's life. The John Rylands papyrus fragment 52 of John's gospel dated in the year 135 contains portions of John 18:31-33, 37-38. This fragment was found in Egypt and a considerable amount of time is needed for the circulation of the gospel before it reached Egypt. It is the last of the gospels and appears to have been written in the 80's to 90's.
Read the rest of the article here: Wasn't the New Testament written hundreds of years after Christ? | Christian Apologetics and Research Ministry
	
		
			
		
		
	
			
			The gospel of John is supposed to have been written by John the apostle. It is written from the perspective of an eyewitness of the events of Christ's life. The John Rylands papyrus fragment 52 of John's gospel dated in the year 135 contains portions of John 18:31-33, 37-38. This fragment was found in Egypt and a considerable amount of time is needed for the circulation of the gospel before it reached Egypt. It is the last of the gospels and appears to have been written in the 80's to 90's.
Read the rest of the article here: Wasn't the New Testament written hundreds of years after Christ? | Christian Apologetics and Research Ministry