That which has been is that which shall be.
Acts 8:5 Then Philip went down to the city of Samaria, and preached Christ unto them. 6 And the people with one accord gave heed unto those things which Philip spake, hearing and seeing the miracles which he did. 7 For unclean spirits, crying with loud voice, came out of many that were possessed with them: and many taken with palsies, and that were lame, were healed. 8 And there was great joy in that city.
There will be a great revival after the rapture, lots of miracles. It will be a great time to be preaching the gospel and teaching the word.