As posted in a comment here on this blog, “The Mormon Church teaches that when people are married in the temple they are married for eternity but the Bible teaches otherwise as seen by the words of Jesus Himself.”
The author of the comment then quoted this passage of scripture from Matthew 22:
25 Now there were with us seven brothers. The first died after he had married, and having no offspring, left his wife to his brother.
26 Likewise the second also, and the third, even to the seventh.
27 Last of all the woman died also.
28Therefore, in the resurrection, whose wife of the seven will she be? For they all had her.”
29 Jesus answered and said to them, “You are mistaken, not knowing the Scriptures nor the power of God.
30 For in the resurrection they neither marry nor are given in marriage, but are like angels of God[b] in heaven.
The short answer is that the marriages referred to in this passage of scripture were not eternal marriages, hence, as Jesus said, the woman would not be married to any of the brothers in the next life.
The somewhat longer answer is this:
First, we should understand that the men questioning Jesus were Sadducees, who did not believe in the resurrection at all. But the question appears to have been a common one amongst other Jews of the time, and the Sadducess were perfectly happy to use it to try and bait Jesus into giving them an answer that they could say contradicted Moses, who taught the children of Israel that if a man died, his brother should marry that man’s wife. What’s interesting is that there is brought up the idea that one of these seven brothers would indeed be married to this woman in the next life. Although the Sadducess clearly did not believe this would be the case, the fact that they asked this question shows that amongst other Jews of the time the idea of a marriage relationship after this life was probably commonly held. In other words, this passage actually lends support for the idea of eternal marriage having once been a common doctrine that was lost during the Great Apostasy that followed the death of the Apostles.
Second, we need to read carefully the words used in the scripture. The scripture nowhere says that a marriage relationship will not exist after death. It only says that the act of getting marriage, or being “given in marriage”, will not occur. This is in complete accordance with LDS doctrine, which teaches that eternal marriages can only be performed on earth, by living individuals. Even though Mormons practice proxy marriages on behalf of those who have died and were married civilly in this life (no, we don’t just marry random dead people to each other), these eternal marriages, which can either be accepted or rejected by those who have moved on, occur for those who have died prior to their resurrection, in a space that exists between the time of death and time of the resurrection.
Jesus further pointed out that the men questioning him didn’t understand the scriptures or the power of God, which is plain to see based on the question. If they had understood the doctrine of eternal marriage, then they wouldn’t have had to ask the question in the first place. The answer would be that the woman would be the wife of whichever brother she was “sealed” (the term used to refer to the performance of eternal marriages) to.
Doesn’t Matthew 22:23-30 Contradict the LDS Doctrine of Eternal Marriage?
Inasmuch as Latter-day Saints believe in marriage for eternity, how do we explain Jesus’ teachings in Matthew 22:29–30?
Is there Eternal Marriage?