I have studied for years, found new writings from discoveries of Archeologists, but not one writing or book or Idea written by Jesus himself. All is hearsay if taken to a court of law to confirm the sayings of Jesus. Why didn't Jesus write himself the Ideas preached by the Apostles? wouldn't that have resolved questions on authority , divinity, and Nature of God?
God wants us to do it.
Now therefore write ye this song for you, and teach it the children of Israel: put it in their mouths, that this song may be a witness for me against the children of Israel.
he shall read therein all the days of his life: that he may learn to fear the Lord his God, to keep all the words of this law and these statutes, to do them
All the preachings will lead into one single point → 'God loves us all'.
John 21:25 says - 'And there are also many other things which Jesus did, which, if they should be written every one, I suppose that even the world itself could not contain the books that should be written. Amen'