Genesis 25:8 NKJV Then Abraham breathed his last and died in a good old age, an old man and full of years, and was gathered to his people. 9 And his sons Isaac and Ishmael buried him in the cave of Machpelah, which is before Mamre, in the field of Ephron the son of Zohar the Hittite, 10 the field which Abraham purchased from the sons of Heth. There Abraham was buried, and Sarah his wife.
Adam was made ‘a living soul’.
Genesis 2:7 And the LORD God formed man of the dust of the ground, and breathed into his nostrils the breath of life; and man became a living soul.
The sentence on Adam and his descendants is death.
Genesis 3:17 And unto Adam he said, Because thou hast hearkened unto the voice of thy wife, and hast eaten of the tree, of which I commanded thee, saying, Thou shalt not eat of it: cursed is the ground for thy sake; in sorrow shalt thou eat of it all the days of thy life; 18 Thorns also and thistles shall it bring forth to thee; and thou shalt eat the herb of the field; 19 In the sweat of thy face shalt thou eat bread, till thou return unto the ground; for out of it wast thou taken: for dust thou art, and unto dust shalt thou return.
Ezekiel 18:20 The soul that sinneth, it shall die…
When Adam died, he became a dead soul.
We are all souls. When we die, we (our souls) are placed in the grave where we corrupt into dust.
Psalms 89:48 What man is he that liveth, and shall not see death? shall he deliver his soul from the hand of the grave?
Abraham and all the saints that have died are in their graves and corrupted into dust.
Death is likened to sleep.
1 Kings 2:10 So David slept with his fathers, and was buried in the city of David.
Acts 13:36 For David, after he had served his own generation by the will of God, fell on sleep, and was laid unto his fathers, and saw corruption:
Acts 7:60 And he kneeled down, and cried with a loud voice, Lord, lay not this sin to their charge. And when he had said this, he fell asleep.
Abraham and the dead saints sleep in the dust awaiting the resurrection. Daniel prophesies of this.
Daniel 12:2 And many of them that sleep in the dust of the earth shall awake, some to everlasting life, and some to shame and everlasting contempt.
The writer to the Hebrews says of the faithful:
Hebrews 11:13 These all died in faith, not having received the promises, but having seen them afar off, and were persuaded of them, and embraced them, and confessed that they were strangers and pilgrims on the earth.
Hebrews 11:40 God having provided some better thing for us, that they without us should not be made perfect.
1 Corinthians 15:20-23 But now is Christ risen from the dead, and become the firstfruits of them that slept. 21 For since by man came death, by man came also the resurrection of the dead. 22 For as in Adam all die, even so in Christ shall all be made alive. 23 But every man in his own order: Christ the firstfruits; afterward they that are Christ’s at his coming.
1 Thessalonians 4:13-18 But I would not have you to be ignorant, brethren, concerning them which are asleep, that ye sorrow not, even as others which have no hope. 14 For if we believe that Jesus died and rose again, even so them also which sleep in Jesus will God bring with him. 15 For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep. 16 For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first: 17 Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord. 18 Wherefore comfort one another with these words.
John 5:28,29 Marvel not at this: for the hour is coming, in the which all that are in the graves shall hear his voice, 29 And shall come forth; they that have done good, unto the resurrection of life; and they that have done evil, unto the resurrection of damnation.
In conclusion, Abraham and all the saints who have died are in the grave awaiting the return of Christ to raise them from the dead.
The doctrine taught by many churches that we have an immortal soul that lives on after death is a false doctrine not supported by the Bible.
May I suggest that you read After Death – What? (click on the title)
I hope you find this helpful.