Luke 20:27 Then came to him certain of the Sadducees, which deny that there is any resurrection; and they asked him,
They denied the resurrection unto eternal life with God. They were (sad you see).
Luke 20:28 Saying, Master, Moses wrote unto us, If any man's brother die, having a wife, and he die without children, that his brother should take his wife, and raise up seed unto his brother.
This was the law to Israel. So that the inheritance of land would stay in the family. Each of the twelve tribes were given an inheritance of land.
Luke 20:29 There were therefore seven brethren: and the first took a wife, and died without children.
Now it is the Saducees who make up a story to trick Jesus.
Luke 20:30 And the second took her to wife, and he died childless.
Luke 20:31 And the third took her; and in like manner the seven also: and they left no children, and died.
Luke 20:32 Last of all the woman died also.
Luke 20:33 Therefore in the resurrection whose wife of them is she? for seven had her to wife.
Luke 20:34 And Jesus answering said unto them, The children of this world marry, and are given in marriage:
Luke 20:35 But they which shall be accounted worthy to obtain that world, and the resurrection from the dead, neither marry, nor are given in marriage:
No marriage in heaven. Jesus is the bridegroom of the church.
Luke 20:36 Neither can they die any more: for they are equal unto the angels; and are the children of God, being the children of the resurrection.
Like the angels they are spiritual beings. But we shall be greater than the angels.
1 Cor 6:3 Know ye not that we shalljudge angels? how much more things that pertain to this life?
Luke 20:37 Now that the dead are raised, even Moses showed at the bush, when he calleth the Lord the God of Abraham, and the God of Isaac, and the God of Jacob.
Luke 20:38 For he is not a God of the dead, but of the living: for all live unto him.
Not a God of the dead, but of the living. The Saducees could not see the living God and eternal life. They were dead in their sins.