We will have wonderful new bodies in heaven, homes that will be ours forevermore, made for us by God himself and not by human hands. What is the Lord doing now? He’s busy preparing a place for you, a mansion.
But today I want you to see something that Paul say;
"For we that are in this tabernacle do groan, being burdened: not for that we would be unclothed, but clothed upon, that mortality might be swallowed up of life" 2 Corinthians 5:4 KJV
These our bodies (earthly bodies) make us groan and sigh, not for the reason of the many troubles of our lives, no. But that one day we will be clothed upon, and mortality will be swallowed up by life everlasting.
You know why we groan?
It is because we know, that every moment we spend in these earthly bodies is time spent away from our eternal home in heaven with Jesus. So we groan, looking forward with confidence to our heavenly bodies. Paul says, "we are not afraid but are quite content to die, for then we will be at home with the Lord" 2 Corinthians 5:8. It is even the earnest of the Spirit for us, that one day we shall have our heavenly bodies, and we shall put them on like new clothes. 2 Corinthians 5:5 actually says, "Now he that hath wrought us for the selfsame thing is God, who also hath given unto us the earnest of the Spirit." The Spirit is given, that he may ascertain your your resurrection; he will make sure that you have a new body and that you are swallowed up of life. This is the reason why we receive the Holy Ghost, it is so that we may "not be found naked" 2 Corinthians 5:3.
The other reason why we groan is because of the love of Christ which constraints us to serve him, "...he died for all, that they which live should not henceforth live unto themselves, but unto him which died for them, and rose again" 2 Corinthians 5:14-15. Paul once said, "For to me to live is Christ, and to die is gain. But if I live in the flesh, this is the fruit of my labour: yet what I shall choose I wot not" Philippians 1:21-22.
Living means more opportunities for Christ, it gives us more chances to win people to Christ, and dying, well, that’s even better, but what I shall Paul says choose I wot not - it’s God’s will.