prophesied. The Jews regarded any ex cathedra utterance of the High Priest as inspired. Here Caiaphas was used by God, as Salaam was (Numbers 22:38). See Acts 2:23; Acts 4:27; Acts 4:28.
should die. was about to die.
Related Commentaries of John 11:51
John 11:51
51 And this spake he not of himself: but being high priest that year, he prophesied that Jesus should die for that nation;