behold. Figure of speech Asterismos (App-6), for emphasis. App-133.
within = in the midst of, or, among: i.e. already there in the Person of the King (whose presence marks a kingdom). Greek entos, the same meaning as Greek. en (App-104.), with the plural rendered "among" 115 times in N.T. The same meaning as in Mat_12:28. Joh_1:26.
you = you yourselves. His bitter enemies. Therefore not in their hearts; but the very opposite.