John 21:25

And there are also many other things which Jesus did, the 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.

The record of what Jesus did is only partial, for He did many more things than could ever be written down. The vastness of His works exceeds any written account, so what stands written is but a portion of the whole. The disciple's testimony concerning Jesus is true, and this closing affirmation together with the preceding declaration establishes the truthfulness of that witness. The life and work of Jesus form both the model and the substance of the teaching commanded to be carried to all nations.