When the dust returns to the earth, and the spirit back to God who gave it, there is no longer a living soul. If the soul were immortal, then the scriptures would not speak of living, or dying souls. Of course a soul would be living if souls were immortal, and of course they would never be spoken of as dying if they were immortal either. So why do the scriptures apply both to the soul?
Psalms 6:2 Have mercy upon me, O LORD; for I am weak: O LORD, heal me; for my bones are vexed. 3 My soul is also sore vexed: but thou, O LORD, how long? 4 Return, O LORD, deliver my soul: oh save me for thy mercies' sake. 5 For in death there is no remembrance of thee: in the grave who shall give thee thanks?
In the above, David seeks to have himself, that is his soul delivered from death, because in the grave there is no remembrance of God, and he cannot give God thanks from the grave. How is this possible if the soul is immortal? If the soul were alive and in heaven with God surely it would be praising Him. Or if it were in hell, surely it would be cursing Him.
Psalms 7:1 O LORD my God, in thee do I put my trust: save me from all them that persecute me, and deliver me: 2 Lest he tear my soul like a lion, rending it in pieces, while there is none to deliver. 3 O LORD my God, if I have done this; if there be iniquity in my hands; 4 If I have rewarded evil unto him that was at peace with me; (yea, I have delivered him that without cause is mine enemy 5 Let the enemy persecute my soul, and take it; yea, let him tread down my life upon the earth, and lay mine honour in the dust. Selah.
Again what sense do the above verses make if a soul is not a living person, rather than some floating entity that lives apart from the body? Can a soul be torn to pieces? Will it end when ones life does? Yes it will.
Psalms 30:2 O LORD my God, I cried unto thee, and thou hast healed me. 3 O LORD, thou hast brought up my soul from the grave: thou hast kept me alive, that I should not go down to the pit.
How can a soul go to the grave? If it is immortal and goes to heaven or hell at death it should not be spoken of as dying and going to the grave. If on the other hand, it is a living being, then it could be said that ones soul goes to the grave when they die, it is it’s end. When life ends, it ends.
Psalms 33:18 Behold, the eye of the LORD is upon them that fear him, upon them that hope in his mercy; 19 To deliver their soul from death, and to keep them alive in famine. 20 Our soul waiteth for the LORD: he is our help and our shield. 21 For our heart shall rejoice in him, because we have trusted in his holy name. 22 Let thy mercy, O LORD, be upon us, according as we hope in thee.
If our souls must be delivered from death, then they are not immortal. They are like us, they are us, when we are alive. When we are raised from the dead and given everlasting life, we will again be living souls.
Psalms 40:13 Be pleased, O LORD, to deliver me: O LORD, make haste to help me. 14 Let them be ashamed and confounded together that seek after my soul to destroy it; let them be driven backward and put to shame that wish me evil.
Who can destroy a soul if it is immortal? It is not. When life ends, it ends, because when one is alive, they are a living soul.
Psalms 49:12 Nevertheless man being in honour abideth not: he is like the beasts that perish. 13 This their way is their folly: yet their posterity approve their sayings. Selah. 14 Like sheep they are laid in the grave; death shall feed on them; and the upright shall have dominion over them in the morning; and their beauty shall consume in the grave from their dwelling. 15 But God will redeem my soul from the power of the grave: for he shall receive me. Selah.
Again the soul being associated with life, being redeemed from the grave. If it were immortal, this would not be so.
Psalms 56:12 Thy vows are upon me, O God: I will render praises unto thee. 13 For thou hast delivered my soul from death:wilt not thou deliver my feet from falling, that I may walk before God in the light of the living?
Again, when God delivers the soul from death, one can walk in the light of the living. Makes no sense if the soul is immortal.
Psalms 78:49 He cast upon them the fierceness of his anger, wrath, and indignation, and trouble, by sending evil angels among them. 50 He made a way to his anger; he spared not their soul from death, but gave their life over to the pestilence; 51 And smote all the firstborn in Egypt; the chief of their strength in the tabernacles of Ham:
God spared not the Egyptians souls from death, but killed them by the plagues. Their souls died, that is, they died. Obviously their souls were not immortal.
Psalms 86:1 Bow down thine ear, O LORD, hear me: for I am poor and needy. 2 Preserve my soul; for I am holy: O thou my God, save thy servant that trusteth in thee. 3 Be merciful unto me, O Lord: for I cry unto thee daily.
Who needs their soul to be preserved if it is immortal?
You use the scriptures like a drunk uses a lamp post. For support and not for illumination.
John saw the souls of martyrs under the altar and they were speaking. That is proof of their immortality.