Commands of Christ: 8

Do not be amazed at My authority.

Truly, truly, I tell you, whoever hears my word and believes him who sent me has eternal life and will not be judged but has crossed over from death to life.  Truly, truly, I say to you, the hour is coming and is now here when the dead will hear the voice of the Son of God, and those who hear will live. For just as the Father has life in himself, so also he gave to his Son the possession of life in himself.  And he gave him power to exercise judgment, because he is the Son of Man.  Do not be amazed at this, because the hour is coming in which all who are in the tombs will hear his voice  and will come out, those who have done good deeds to the resurrection of life, but those who have done wicked deeds to the resurrection of condemnation. John 5:24-29

Jesus had been explaining that the healings He was performing and, indeed, all His activities were sanctioned and even commanded by God the Father.  The Father had given Jesus all authority, including the authority to judge all people who ever lived.  He had authority to condemn and punish and authority to justify and reward.  He had authority to give life, not just temporarily but eternally.  Therefore, we must not be surprised at anything He does.  God has given Him all authority.