Genesis 3:17-19 traces humanity's mortal condition to the Fall — 'dust you are and to dust you shall return' — grounding the beast-like mortality Ecclesiastes observes.

Psalm 49:14 uses the same animal imagery — 'like sheep they are laid in the grave' — directly paralleling the beast-like mortality Ecclesiastes describes.

Psalm 49:20 states that man without understanding is 'like the beasts that perish' — an exact parallel to Ecclesiastes' point about human beast-likeness.

Psalm 73:22 explicitly says 'I was as a beast before thee,' directly mirroring Ecclesiastes' claim about humans being like animals.

Psalm 90:5-12 compares humans to grass and a sleep — 'their years are but a breath' — deeply echoing the fleeting, beast-like existence Ecclesiastes notes.

Job 18:3 asks why humans are counted as beasts, directly aligning with Ecclesiastes' statement that humans are like animals.

Psalm 49:12 states man is 'like the beasts that perish,' directly echoing Ecclesiastes' comparison of human mortality to animals.

Job 14:1-4 describes man as 'few of days and full of trouble' — reinforcing the same bleak, mortal view of humanity Ecclesiastes compares to beasts.