In verses 28 and 29, Jesus was speaking primarily of the Kingdom Age. Notice the two component parts: those who “have done good” and those who “have done evil.” Those who have done good would be the Little Flock, the Great Company, and the Ancient Worthies (the “spirits of just men made perfect”—Heb. 12:23). The Ancient Worthies will be raised perfect, having already proven faithful. When the Kingdom is established, the krisis period for each of these three classes will already have occurred, whereas the world will get their krisis period in the Kingdom.
“Damnation” (Greek krisis) means “judgment.” Krisis is translated “condemnation” in verse 24 and “judgment” in verse 27. The thought is of a trial period, not just a verdict. The Revised Standard Version has “resurrection of judgment,” that is, a resurrection of stripes and disciplines. Thus the nature of the judgment is shown rather than just final judgment.