Even as an atheist I've wondered what Christians think they will be doing in Heaven. Correct me if I am wrong, but in one of Paul's letters doesn't he respond by saying, "That's a stupid question!"
Personally I think it is a good question to ask, and interestingly the Bible seems to offer few clues. Maybe this is because none of the biblical writers could imagine what daily life in Heaven would be like.
First of all, I don't believe we go to heaven, God comes to the earth. There are passages that explain that but to answer this, here is what Paul actually said...
1Co 15:35 But someone will say, "How are the dead raised up? And with what body do they come?"
1Co 15:36 Foolish one, what you sow is not made alive unless it dies.
1Co 15:37 And what you sow, you do not sow that body that shall be, but mere grain—perhaps wheat or some other grain.
1Co 15:38 But God gives it a body as He pleases, and to each seed its own body.
Remember the letter is information for all but was written to the church at Corinth. The thrust of this is that a spirit body is so much different from a physical body that we don't really comprehend what it will be like, but it will be much different than the physical body...
1Co 13:12 For now we see through a glass, darkly; but then face to face: now I know in part; but then shall I know even as also I am known.
People have desired to know answers from the beginning. We can understand some, some are above our abilities right now to comprehend.
What will it be like for those Christians who remarry after the death of a spouse? Which spouse will they live with? I know my mother-in-law has wondered this as she has outlived three husbands. Maybe this is why the Bible seems to discourage remarriage?
Actually, the Bible encourages marriage but to answer this question let's see what Christ Himself said about it...
Mat 22:23 The same day came to him the Sadducees, which say that there is no resurrection, and asked him,
Mat 22:24 Saying, Master, Moses said, If a man die, having no children, his brother shall marry his wife, and raise up seed unto his brother.
The Levirate Law here.
Mat 22:25 Now there were with us seven brethren: and the first, when he had married a wife, deceased, and, having no issue, left his wife unto his brother:
Mat 22:26 Likewise the second also, and the third, unto the seventh.
Mat 22:27 And last of all the woman died also.
Mat 22:28 Therefore in the resurrection whose wife shall she be of the seven? for they all had her.
Mat 22:29 Jesus answered and said unto them, Ye do err, not knowing the scriptures, nor the power of God.
Mat 22:30 For in the resurrection they neither marry, nor are given in marriage, but are as the angels of God in heaven.
The marriage is with Christ at that time...
Rev 19:9 And he saith unto me, Write, Blessed are they which are called unto the marriage supper of the Lamb. And he saith unto me, These are the true sayings of God.
I have a lot of other questions about Heaven, as you do. Maybe we will meet some folks who think they know the answers.
The basic overview is that Christ returns to earth. As He returns the resurrection occurs. All rebellion is put down and the world then is restored to a perfect state. "The restitution of all things." This goes on for 1000 years. At the end of the 1000 years, those who have not had an opportunity for salvation will be resurrected to a physical life, given 100 years and the knowledge of who God is, and what His plan is and they will be given the opportunity to make a choice.
Hope this helps.
