This is indeed a statement of his soul….
Job 19:23 Oh that my words were now written! oh that they were printed in a book!
Job 19:24 That they were graven with an iron pen and lead in the rock for ever!
Job 19:25 For I know that my redeemer liveth, and that he shall stand at the latter day upon the earth:
Job 19:26 And though after my skin worms destroy this body, yet in my flesh shall I see God:
Job 19:27 Whom I shall see for myself, and mine eyes shall behold, and not another; thoughmy reins be consumed within me.
Jesus said in another teaching….
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.
And Paul writes…
Heb 12:29 For our God is a consuming fire.