Ecclesiastes 6:12 uses the same 'shadow' metaphor for life's brevity, reinforcing the fleeting nature of the wicked's days.

In Ecclesiastes 7:15, the Preacher observes that the wicked sometimes prolong life — contrasting with 8:13's claim that it will not be well.

John 5:29 speaks of resurrection to judgment for those who do evil, confirming the wicked's negative outcome.

Job 14:2 explicitly says man 'flees like a shadow' — the exact image used here for the wicked's fleeting existence.

Job 18:5 declares the light of the wicked goes out — directly illustrating the fate of the wicked in Ecclesiastes 8:13.

Job 20:5 echoes the same truth: the wicked's joy is short-lived, reinforcing that they won't prosper long.

Job 21:30 adds that the wicked are reserved for disaster, showing their ultimate downfall aligns with 'not well'.

Psalm 55:23 promises God casts the wicked down and shortens their days, directly matching Ecclesiastes' 'lengthen his days.'

Psalm 144:4 declares man's days are like a passing shadow — directly matching the metaphor for the wicked's short life.

Isaiah 57:21 directly states 'no peace for the wicked,' a near-verbatim parallel to Ecclesiastes' 'it will not be well.'

In Deuteronomy 17:20, the king who fears God is promised prolonged days — directly parallel to the wicked's failure to lengthen days here.

In Job 27:13, the portion of the wicked is detailed — directly paralleling Ecclesiastes 8:13's statement that it will not be well with them.

In Psalm 73:17, entering the sanctuary reveals the final end of the wicked — echoing the assurance here that the wicked will not prosper.

Isaiah 3:11 pronounces woe on the wicked, saying it shall be ill with him — directly parallel to Ecclesiastes 8:13's statement.

Matthew 13:49 describes the final separation of evil from righteous, showing the ultimate consequence for the wicked.

In 2 Peter 2:3, the same certainty of judgment on the wicked is emphasized — their destruction is imminent, echoing the fate described here.

Matthew 13:50 pictures the fiery punishment for the wicked, expanding on why they won't be well in the end.

Matthew 10:28 commands fear of God who controls eternal destiny, complementing Ecclesiastes' observation that the wicked lack such fear.

In Genesis 22:12, Abraham's fear of God is commended — contrasting with the wicked who lack this fear and thus face shortened days.

Malachi 3:18 promises a clear distinction between righteous and wicked, affirming that outcomes differ as Ecclesiastes says.

Psalm 11:5 shows God actively hates the wicked, giving a reason why they won't be well — divine opposition.

James 4:14 calls life a vanishing mist, reinforcing the fleeting nature of human existence, similar to the shadow.

Genesis 18:25 affirms that God judges justly, not treating righteous and wicked alike, supporting the fate of the wicked here.