I think scripture is pretty clear that the dead are dead
The idea of people laying in the ground.. "dead" until the resurrection is sometimes called soul sleep.
John 11:11 This He said, and after that He *said to them,
"Our friend Lazarus has fallen asleep; but I go, so that I may awaken him out of sleep."
John 11:13 Now Jesus had spoken of his death, but they thought that He was speaking of literal sleep.
Jesus calls temporary death.. "sleep", at least here.
1Cor 11:30 For this reason many among you are weak and sick, and a number sleep.
This verse really means, and a number of you have already died ( sleep )
1Cor 15:50 Now I say this, brethren, that flesh and blood cannot inherit the kingdom of God; nor does the perishable inherit the imperishable.
1Cor 15:51 Behold, I tell you a mystery; we will not all sleep, but we will all be changed,
1Cor 15:52 in a moment, in the twinkling of an eye, at the last trumpet; for the trumpet will sound, and the dead will be raised imperishable, and we will be changed.
Verse 51 above really means, we won't all be dead yet, but we will all be changed.
Matt 9:24 He said, "
Leave; for the girl has not died, but is asleep." And they began laughing at Him.
Matt 9:25 But when the crowd had been sent out, He entered and took her by the hand, and the girl got up.
The people around the girl at least believed she was dead, but Jesus said she was asleep.
When Stephen was stoned to death...
Acts 7:60 Then falling on his knees, he cried out with a loud voice, "Lord, do not hold this sin against them!" Having said this,
he fell asleep.
Acts 13:36 "For David, after he had served the purpose of God in his own generation,
fell asleep, and was laid among his fathers and underwent decay;
This verse means David died, and was laid among his ancesters.
1Cor 15:5 and that He appeared to Cephas, then to the twelve.
1Cor 15:6 After that He appeared to more than five hundred brethren at one time, most of whom remain until now, but some have fallen asleep;
1Cor 15:7 then He appeared to James, then to all the apostles;
Verse 6 above really means, still are still alive, but some have died.
1Cor 15:17 and if Christ has not been raised, your faith is worthless; you are still in your sins.
1Cor 15:18 Then those also
who have fallen asleep in Christ have perished.
1Cor 15:19 If we have hoped in Christ in this life only, we are of all men most to be pitied.
Verse 18 above means, those who have died knowing Jesus.
1Thes 4:13 But we do not want you to be uninformed, brethren, about
those who are asleep, so that you will not grieve as do the rest who have no hope.
1Thes 4:14 For if we believe that Jesus died and rose again, even so God will bring with Him those who have
fallen asleep in Jesus.
1Thes 4:15 For this we say to you by the word of the Lord, that we who are alive and remain until the coming of the Lord, will not precede those who have
fallen asleep.
1Thes 4:16 For the Lord Himself will descend from heaven with a shout, with the voice of the archangel and with the trumpet of God, and the
dead in Christ will rise first.
Again, the dead Christians here are called "asleep".
1Thes 5:10 who died for us, so that whether we are
awake or asleep, we will live together with Him.
This means alive or dead.
2Pet 3:4 and saying, "Where is the promise of His coming? For ever since the fathers
fell asleep, all continues just as it was from the beginning of creation."
This means all our ancestors are dead.
1Sam 28:15 Then Samuel said to Saul, "Why have you disturbed me by bringing me up?" And Saul answered, "I am greatly distressed; for the Philistines are waging war against me, and God has departed from me and no longer answers me, either through prophets or by dreams; therefore I have called you, that you may make known to me what I should do."
The thought here is... Samuel is saying.. "why did you wake me up from my slumber?"
Why wasn't Samuel in heaven? Did dead Lazarus go to heaven? Or did he just "sleep" in the ground?