Faith

Jesus said in (John 5:28. Marvel not at this: for the hour is coming, in the which all that are in the graves shall hear his voice,).

It has been said that if Jesus had made a general command that all the dead from the past would have come back to life. That is the power and authority He has at His disposal! However, to the scoffers who were there, even a greater demonstration of power would not have changed their hearts. This was demonstrated with the Israelites coming out of Egypt. At Mt. Sinai, God showed Himself mightily to them, but that never turned their hearts toward Him.

Miracles of themselves do not produce Godly faith and worship. As Jesus told Thomas later, (John 20:29. Jesus saith unto him, Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed.) Faith is believing without first having to see.