Psalm 18:42

Then did I beat them small as the dust before the wind: I did cast them out as the dirt in the streets.

Cross-reference

Isaiah 41:16 continues with winnowing and wind scattering, directly echoing 'dust before the wind' from Psalm 18:42.

2 Samuel 22:43 is the parallel version of this same psalm, with nearly identical wording about beating enemies to dust.

1 Samuel 30:17 Historical context

1 Samuel 30:17 records David's actual slaughter of the Amalekites, the historical basis for this poetic victory.

Isaiah 41:15 depicts Israel as a threshing sledge crushing mountains, similar to David beating enemies to dust.

Malachi 4:3 Parallel

Malachi 4:3 describes treading down the wicked as ashes, a parallel to beating enemies to dust.