I glean Hebrews 10 discusses salvation of the soul, but not the loss of the human spirit, nor the resurrected body.
(Rev 6:9) “And when he had opened the fifth seal, I saw under the altar the souls of them that were slain for the word of God, and for the testimony which they held:”
Heb 12:23 To the general assembly and church of the firstborn, which are written in heaven, and to God the Judge of all, and to the spirits of just men made perfect,
(Mat 10:28) “And fear not them which kill the body, but are not able to kill the soul: but rather fear him which is able to destroy both soul and body in hell.”