Contradiction with Psalms 146:4
This verse suggests that when a person's spirit departs, they do not have any thoughts, contrasting the ongoing praise mentioned in Psalms 115:18.
Psalms 146:4: His breath goeth forth, he returneth to his earth; in that very day his thoughts perish.
Contradiction with Ecclesiastes 9:5
States that the dead know nothing and have no further reward, conflicting with the idea of continuous praise in Psalms 115:18.
Ecclesiastes 9:5: For the living know that they shall die: but the dead know not any thing, neither have they any more a reward; for the memory of them is forgotten.
Contradiction with Isaiah 38:18
Indicates that the grave cannot praise God, contradicting the notion of blessing the Lord forever as seen in Psalms 115:18.
Isaiah 38:18: For the grave cannot praise thee, death can [not] celebrate thee: they that go down into the pit cannot hope for thy truth.