In Ecclesiastes 3:20, the same phrase 'dust returns to dust' reinforces the teaching on human mortality.

In Ecclesiastes 9:3, all go to the dead, reinforcing the universality of death in 12:7.

In Ecclesiastes 6:6, all go to one place, echoing the return to dust but without the spirit returning to God.

In Genesis 3:19, the curse 'dust you are and to dust you shall return' is the origin of the imagery used here.

Genesis 2:7 shows the origin: God forms man from dust and breathes life into him — the reversal of the dust and spirit returning to their sources.

Zechariah 12:1 declares God 'formed the spirit of man within him' — directly correlating to the spirit returning to God who gave it.

Job 7:21 states 'I shall lie in the earth' — directly referring to returning to dust at death.

Psalm 146:4 says 'his breath departs, he returns to the earth,' closely matching the spirit's departure and dust return.

Job 34:14 speaks of God gathering his spirit and breath, implying the spirit's return to God at death.

Job 34:15 explicitly says 'mankind would return to dust,' directly paralleling the dust returning to earth.

Psalm 90:3 states 'You return mankind to dust,' a direct parallel to the dust returning to the earth.

James 2:26 uses the body-spirit relationship as an analogy: a body without spirit is dead—Ecclesiastes 12:7 describes that separation at death.

Hebrews 9:27 states that death is followed by judgment—Ecclesiastes 12:7 says the spirit returns to God, implying divine accountability.

In Psalm 104:29, God takes breath and creatures return to dust, directly paralleling the return of dust and spirit.

In Psalm 103:14, God remembers we are dust, highlighting the fragility that leads to death.

In Psalm 89:48, the rhetorical question about living without death reinforces the inevitability of returning to dust and spirit.

In Job 10:9, Job laments being made from clay and returned to dust, a direct parallel to this verse.

In Job 1:21, Job declares returning naked to the earth, directly paralleling the dust returning to earth.

In Genesis 49:33, Jacob's death and his spirit's departure parallel the spirit returning to God.

In Isaiah 57:2, the righteous enter peace at death, complementing the spirit's return to God.

Job 4:19 calls human bodies 'houses of clay' from dust, echoing the body's return to dust in Ecclesiastes.

Numbers 27:16 uses the same title 'God of the spirits of all flesh' — reinforcing that God is the source and owner of every spirit.

Isaiah 57:16 mentions the 'breath of life' God made — His role as giver of spirit, echoed in Ecclesiastes 12:7's 'spirit returns to God who gave it'.

Jeremiah 38:16 swears by the Lord 'who made our souls' — affirming God as the origin of the spirit that returns to Him at death.

Daniel 12:2 mentions those who 'sleep in the dust' will awake, adding resurrection to the dust motif.

Numbers 16:22 calls God 'the God of the spirits of all flesh' — acknowledging that all spirits come from God, consistent with the spirit returning to Him.

Hebrews 12:9 calls God 'Father of spirits' — emphasizing God as the origin and caretaker of human spirits, which return to Him.

Hebrews 12:23 refers to 'spirits of the righteous made perfect' — showing the destination of spirits after death, consistent with returning to God.

In Genesis 18:27, Abraham calls himself 'dust and ashes,' a phrase that resonates with the dust returning to dust here.