In Ecclesiastes 9:10, the same idea: in the grave there is no work or planning—expanding on the vanished passions of verse 6.

In Ecclesiastes 2:18-23, the Preacher laments leaving his toil to another after death—reinforcing that the dead have no part in earthly achievements.

In Ecclesiastes 1:3, the Preacher asks what gain there is in labor—Ecclesiastes 9:6 shows death ends all participation, so no lasting gain.

In Psalm 146:4, when the spirit departs, plans come to nothing—directly echoing Ecclesiastes 9:6's vanished passions of the dead.

In Isaiah 38:11, Hezekiah laments no longer seeing God or people in death—paralleling Ecclesiastes 9:6's 'never again have a part under the sun'.

In 1 Corinthians 15:55, Paul declares death's defeat — directly opposing Ecclesiastes' view that death ends all love and hate.

Job 3:17 describes death as a place where trouble ceases — paralleling Ecclesiastes' statement that love and hate perish.

Job 3:17 again portrays death as rest from turmoil — aligning with Ecclesiastes 9:6's view that earthly passions end.

In Proverbs 10:28, the hopes of the wicked come to nothing—parallel to the dead's love and hate vanishing in Ecclesiastes 9:6.