I think Jesus summed this up best:
Matthew 25
*23: The same day Sad’ducees came to him, who say that there is no resurrection; and they asked him a question, *
*24: saying, “Teacher, Moses said, `If a man dies, having no children, his brother must marry the widow, and raise up children for his brother.’ *
*25: Now there were seven brothers among us; the first married, and died, and having no children left his wife to his brother. *
*26: So too the second and third, down to the seventh. *
*27: After them all, the woman died. *
*28: In the resurrection, therefore, to which of the seven will she be wife? For they all had her.” *
*29: But Jesus answered them, "You are wrong, because you know neither the scriptures nor the power of God. *
*30: For in the resurrection they neither marry nor are given in marriage, but are like angels in heaven. *