Job 34:15 (KJV)

God cannot be unjustElihu had showed Job, that God meant him no hurt by afflicting him, but intended his spiritual benefit. Here he shows, that God did him no wrong by...

Genesis 7:21 And all flesh died that moved upon the earth, both of fowl, and of cattle, and of beast, and of every creeping thing that creepeth upon the earth, and every man:
Isaiah 40:6 The voice said, Cry. And he said, What shall I cry? All flesh is grass, and all the goodliness thereof is as the flower of the field:

From Thompson’s Chain-Reference Bible (1908).

Genesis 3:19 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.
Ecclesiastes 12:7 Then shall the dust return to the earth as it was: and the spirit shall return unto God who gave it.
Isaiah 57:16 For I will not contend for ever, neither will I be always wroth: for the spirit should fail before me, and the souls which I have made.
Job 9:22 This is one thing, therefore I said it, He destroyeth the perfect and the wicked.
Job 10:9 Remember, I beseech thee, that thou hast made me as the clay; and wilt thou bring me into dust again?
Job 30:23 For I know that thou wilt bring me to death, and to the house appointed for all living.
Psalms 90:3–10 Thou turnest man to destruction; and sayest, Return, ye children of men. …
Isaiah 27:4 Fury is not in me: who would set the briers and thorns against me in battle? I would go through them, I would burn them together.

From OpenBible.info, most relevant first.

All flesh כָּל kol Noun · masculine singular construct בָּשָׂר bāśār בָּשָׂר Noun · masculine singular
shall perish יִגְוַע yigwaʿ גָּוַע Verb · qal imperfect, third person masculine singular
together יָחַד yāḥad יַחַד Adverb
and man וְאָדָם wĕʾādām אָדָם Noun · masculine singular · with and
shall turn again יָשׁוּב yāšûb שׁוּב Verb · qal imperfect, third person masculine singular
unto dust עַל ʿal Preposition עָפָר ʿāpār עָפָר Noun · masculine singular

Job 34:15 KJV