Adam Clarke's Commentary on the Bible - John 17:8
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, John 17:7 , John 17:8 . read more
John Gills Exposition of the Bible Commentary - John 17:11
And now I am no more in the world ,.... In the earth; which is no contradiction to his resurrection from the dead, and stay with his disciples for a while; nor to his return to judge the world at the last day; nor to his reigning on earth with his saints a thousand years; since it will not be the world as it now is, but it will be a new earth, renewed, purified and refined, and clear of the wicked inhabitants of it; and in which will only dwell righteous persons: besides, Christ was to be,... read more