In Ecclesiastes 12:7, the same destiny unfolds: dust returns to earth and spirit to God, amplifying the universal death.

Ecclesiastes 8:11 explains why hearts are evil: delayed justice. This deepens the observation of pervasive evil in 9:3.

Ecclesiastes 1:17 mentions madness as part of the Preacher's search, directly linking to the 'madness in their hearts' in 9:3.

Ecclesiastes 7:25 seeks to understand wickedness and madness, same concepts as the evil and madness in 9:3.

In Ecclesiastes 8:14, the same injustice—righteous and wicked sharing one fate—directly echoes Ecclesiastes 9:3's 'same event happens to all'.

Genesis 8:21 affirms that man's heart is evil from youth — reinforcing Ecclesiastes' claim about humanity's evil heart.

Romans 1:29-31 catalogs the sins of a depraved mind, parallel to the 'full of evil' heart in Ecclesiastes 9:3.

Mark 7:21-23 provides a detailed list of sins from the heart, matching the madness and evil in Ecclesiastes 9:3.

Matthew 15:19 lists evil thoughts coming from the heart, directly parallel to the heart's evil in Ecclesiastes 9:3.

Jeremiah 17:9 echoes the same theme: the human heart is deceitful and sick, parallel to the 'hearts full of evil' here.

In Proverbs 14:32, the righteous find refuge in death—opposing Ecclesiastes's claim that all share the same fate.

Psalm 51:5 confesses innate sin from conception — aligning with Ecclesiastes' observation of evil in the heart.

Job 15:16 calls humans 'abominable and corrupt' — matching Ecclesiastes' view that hearts are full of evil.

Genesis 6:5 describes every intention of the heart as only evil — directly parallel to the 'full of evil' in Ecclesiastes.

In 1 Samuel 19:1, Saul's plotted murder of David exemplifies the evil in human hearts that Ecclesiastes 9:3 calls universal.

Jeremiah 16:12 also describes the stubborn evil will in human hearts, echoing the pervasive wickedness here.

Luke 6:11 shows the Pharisees filled with fury—an instance of evil in the heart, illustrating the principle of Ecclesiastes 9:3.

In Acts 26:11, Paul's former persecution frenzy embodies the 'madness in their hearts'—a concrete instance of human evil.

In Genesis 19:9, the men of Sodom reveal hearts full of evil—a vivid illustration of madness under the sun.

In Acts 12:23, Herod's death by worms exemplifies that even the powerful share the common destiny of all.

Titus 3:3 describes past sinful nature—foolish, deceived, enslaved—reflecting the universal evil heart of Ecclesiastes 9:3.

In Job 15:20, the wicked's lifelong anguish parallels the evil and madness in human hearts from Ecclesiastes 9:3.