Did you actually read all that I wrote in pervious posts or just that last post? If not please go back and read them. I don't want to repeat previous posts. This is another cherry picked verse without an OT foundation.
Mark 12:20-27, the question is regarding marriage and husband & wives in the kingdom; it's not a theological explanation to whether not people are "living in heaven".
On top of that, the question is being ask regarding the resurrection, not ghost ascension.
The Sadducees didn't believe in the resurrection. I'm sorry, but you are striping it from context. Jesus is saying that the Sadducees who didn't believe in the resurrection are wrong and that God is the God if living not the dead, that is, there is a resurrection of the dead and we will be alive again and He will be our God.
18 Then some Sadducees, who say there is no resurrection, came to Him; and they asked Him, saying: 19 “Teacher, Moses wrote to us that if a man’s brother dies, and leaves his wife behind, and leaves no children, his brother should take his wife and raise up offspring for his brother.
20 Now there were seven brothers. The first took a wife; and dying, he left no offspring. 21 And the second took her, and he died; nor did he leave any offspring. And the third likewise. 22 So the seven had her and left no offspring. Last of all the woman died also. 23 Therefore, in the resurrection, when they rise, whose wife will she be? For all seven had her as wife.”
24 Jesus answered and said to them, “Are you not therefore [a]mistaken, because you do not know the Scriptures nor the power of God? 25 For when they rise from the dead, they neither marry nor are given in marriage, but are like angels in heaven. 26 But concerning the dead, that they rise, have you not read in the book of Moses, in the burning bush passage, how God spoke to him, saying, ‘I am the God of Abraham, the God of Isaac, and the God of Jacob’? 27 He is not the God of the dead, but the God of the living. You are therefore greatly mistaken.”
If you say that the fathers are all in "heaven" then please explain why it says the only person who went to heaven is He who came down from heaven, that is the Son. Which would exclude every person who has ever lived.
John 3:13
13 No one has ascended to heaven but He who came down from heaven, that is, the Son of Man [a]who is in heaven.
Please also explain why it say David didn't ascend to heaven and is buried in his tomb:
29 “Men and brethren, let me speak freely to you of the patriarch David, that he is both dead and buried, and his tomb is with us to this day. 30 Therefore, being a prophet, and knowing that God had sworn with an oath to him that of the fruit of his body, according to the flesh, He would raise up the Christ to sit on his throne, 31 he, foreseeing this, spoke concerning the resurrection of the Christ, that His soul was not left in Hades, nor did His flesh see corruption. 32 This Jesus God has raised up, of which we are all witnesses. 33 Therefore being exalted [j]to the right hand of God, and having received from the Father the promise of the Holy Spirit, He poured out this which you now see and hear.
34 “For David did not ascend into the heavens, but he says himself: