The Father himself, who sent me, has testified about me. You have neither heard his voice at any time, nor seen his form.

 5:25-29 This is the truth I tell you--the hour is coming and now is when the dead will hear the voice of the Son of God, and, when they have heard, they will live. For, as the Father has life in himself, so he has given to the Son to have life in himself. And he has given him authority to exercise the process of judgment, because he is the Son of Man. Do not be astonished at this, for the hour is coming when everyone in the tombs wig hear his voice and will come forth; those who have done good will come out to a resurrection which wild give them life, but those whose actions were base will come out to a resurrection which will issue in judgment. 