In context
25Very truly I tell you, the hour is coming — it is here now — when the dead will hear the voice of the Son of God, and those who hear will live. 26For just as the Father has life in himself, so he has granted the Son also to have life in himself, 27and he has given him authority to execute judgment, because he is the Son of Man. 28Do not be amazed at this: the hour is coming when all who are in the tombs will hear his voice 29and come out — those who have done good, to a resurrection of life; those who have done evil, to a resurrection of judgment.
