Don't marvel at this, for the hour comes, in which all that are in the tombs will hear his voice,
These verses contain a tremendous witness of himself, spoken by Jesus in such a way as to demand their acceptance by men; but the Master saw that the Sanhedrinists and their followers were adamant in their rejection of all that he was declaring, despite the signs he did.  Such a rejection Jesus met by a change of tactic, and thus he at once marshaled other witnesses upon his own behalf.