Concerning what did Christ tell us not to marvel?

Answer

"Marvel not at this: for the hour is coming, in the which all that are in the graves shall hear His voice, and
shall come forth; they that have done good, unto the resurrection of life; and they that have done evil, unto
the resurrection of damnation." John 5: 28, 29.

What record answers to this prophecy?
How did the people respond to the preaching of John?
What answer did he return when asked concerning his mission?
How did Christ suggest that His disciples follow His example in teaching gospel truth?
In symbolic prophecy what length of time is represented by a day?
How does Paul again express this same truth?
Of what will the saints speak?

Questions & Answers are from the book Bible Readings for the Home Circle