Acts 24:15 tells us there will be a resurrection of the just, those who come forth in the first resurrection, and the unjust, those who come forth in the second resurrection. At this time the bodies from the graves and the spirits from Hell, Pit or Prison house will be united along with those that heard, were tempted and proven during the little season.
(Rev 1:7 KJV) Behold, he cometh with clouds; and every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen.
(Mark 13:26-27 KJV) And then shall they see the Son of man coming in the clouds with great power and glory. And then shall he send his angels, and shall gather together his elect from the four winds, from the uttermost part of the earth to the uttermost part of heaven.
(Acts 1:11 KJV) Which also said, Ye men of Galilee, why stand ye gazing up into heaven? This same Jesus, which is taken up from you into heaven, shall come in like manner as ye have seen him go into heaven.