John 17:8: Verse 8
I have given - them the words - I have delivered thy doctrine to them, so that they have had a pure teaching immediately from heaven: neither Jewish fables nor fictions of men have been mingled with it.
And have known surely - Are fully convinced and acknowledge that I am the promised Messiah, and that they are to look for none other; and that my mission and doctrine are all Divine, Joh 17:7, Joh 17:8.