Jesus is the "first fruits" the first to be ressurrected bodily, as the tomb was empty, and Lazarus whom Jesus bodily ressurected died again, so Jesus is the first to be ressurrected to life eternal. Let me show you something from I Thess. 4:
4:13 But I would not have you to be ignorant, brethren, concerning them which are asleep, that ye sorrow not, even as others which have no hope.
4:14 For if we believe that Jesus died and rose again, even so them also which sleep in Jesus will God bring with him.
4:15 For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep.
4:16 For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first: 4:17 Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord.
4:18 Wherefore comfort one another with these words.
Okay, first, it says those who are already dead, are with Christ when he returns, perhaps in a temporary spriritual body, or just their spirit, whatever. Fact is they come back with Him (absent from the body present with the Lord). Next note that they spake this by "the word of the Lord", in other words, this is true and of God. Next it says we who are alive shall not 'prevent', which in old english means 'go before' those which are asleep, (dead in Christ), and that they, the dead in Christ will rise first, then we which are alive and remain shall be caught up with them in the air and will forever be with the Lord. This is what many of us call the rapture, where Christ meets His own in the air, whereas at the 2nd Coming He splits the Mount of Olives with His feet when He comes to earth with ten thousands of His saints.
Anyway, this rapture, is when we receive our new glorified bodies, incorruptible, immortal, as it speaks of in I Cor. 15: 15:51 Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed, 15:52 In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.
15:53 For this corruptible must put on incorruption, and this mortal must put on immortality.
15:54 So when this corruptible shall have put on incorruption, and this mortal shall have put on immortality, then shall be brought to pass the saying that is written, Death is swallowed up in victory.
15:55 O death, where is thy sting? O grave, where is thy victory? 15:56 The sting of death is sin; and the strength of sin is the law.
15:57 But thanks be to God, which giveth us the victory through our Lord Jesus Christ.
(King James Bible, 1 Corinthians)
So, in a moment, in a twinkling of an eye we will be ressurrected or raptured if still alive, are old bodies miraculously coming together from the molecules or wherever, and transforming into new glorified, immortal, incorruptible bodies, and we shall be with Jesus forever. This is the blessed hope of every beliver and why we rejoice because He bought us and holds us in His hands and nothing is greater than God, not even you nor me, and our eternal security in Him, and His promise to some folks, that we may never even experience death, and to those already with Him, we will all be united in wondrous bodies, our bodies, but changed! Haleluia, gives you hope for life!