Mark 12:18 Then come unto him the Sadducees, which say there is no resurrection; and they asked him, saying,
The Sadducees were the unbelieving Jewish leaders of the counsel. They did not believe in the Spiritual world; angels, heaven or hell. These were the liberals of Israel's leaders, they did not believe in the resurrection They were sad - u - see.The Pharisees believed in the resurrection and an after life. Unbelieving Saducees, now come against Jesus, the Living Word, the way the truth and the life, to try to confuse him and to make him look foolish. They were the fools with foolish questions.
Titus 3:9 But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.
Titus 3:10 A man that is an heretic after the first and second admonition reject;
Titus 3:11 Knowing that he that is such is subverted, and sinneth, being condemned of himself.
Mark 12:19 Master, Moses wrote unto us, If a man's brother die, and leave his wife behind him, and leave no children, that his brother should take his wife, and raise up seed unto his brother.
Mark 12:20 Now there were seven brethren: and the first took a wife, and dying left no seed.
Mark 12:21 And the second took her, and died, neither left he any seed: and the third likewise.
Mark 12:22 And the seven had her, and left no seed: last of all the woman died also.
Mark 12:23 In the resurrection therefore, when they shall rise, whose wife shall she be of them? for the seven had her to wife.
This was a foolish question, from unbelief.
The Sadducees believed that when the body died, the soul died. The Bible not only tells us that the soul lives on when the body dies, but that the soul will be given a new body, a body fit for eternity - a resurrection body. (Guzik)
Mark 12:24 And Jesus answering said unto them, Do ye not therefore err, because ye know not the scriptures, neither the power of God?
They knew not God nor the scriptures. Heaven will not be just a continuation of life on earth at it's best. Muslim extremists see heaven as a place of lust with seventy - two virgins waiting for them. Jesus will show themtruth on this matter.
Mark 12:25 For when they shall rise from the dead, they neither marry, nor are given in marriage; but are as the angels which are in heaven.
Angels in heaven are spiritual creatures, there is no lust and no marriage. There is one marriage, but not of two people. Jesus shall receive his bride, which is all of the believers called the church. It is a spiritual union with our Lord, he loves us as a close intimate relationship, blending soul and spirit. He will be the best provider, we will lack nothing, for all he has he will share with us.
1 John 3:2 Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.
1 John 3:3 And every man that hath this hope in him purifieth himself, even as he is pure.
Rev 21:9 And there came unto me one of the seven angels which had the seven vials full of the seven last plagues, and talked with me, saying, Come hither, I will show thee the bride, the Lamb's wife.
Rev 21:10 And he carried me away in the spirit to a great and high mountain, and showed me that great city, the holy Jerusalem, descending out of heaven from God,
Rev 21:27 And there shall in no wise enter into it any thing that defileth, neither whatsoever worketh abomination, or maketh a lie: but they which are written in the Lamb's book of life.
Rev 22:4 And they shall see his face; and his name shall be in their foreheads.
Rev 22:5 And there shall be no night there; and they need no candle, neither light of the sun; for the Lord God giveth them light: and they shall reign for ever and ever.
Rev 22:16 I Jesus have sent mine angel to testify unto you these things in the churches. I am the root and the offspring of David, and the bright and morning star.
Rev 22:17 And the Spirit and the bride say, Come. And let him that heareth say, Come. And let him that is athirst come. And whosoever will, let him take the water of life freely.