Unit 1 (v. 6a): God’s “chosen fast” begins with undoing injustice
God asks a pointed question: the fast he chooses is not mainly about going without food but about loosening “bonds of wickedness” and untying heavy burdens. The picture is of restraints placed on others through wrongdoing, which must be actively removed.
Unit 2 (v. 6b): End oppression by breaking every yoke
The verse repeats the liberation theme in several parallel phrases: let the oppressed go free and “break every yoke.” The point is thoroughness—do not relieve pressure in one area while leaving other forms of coercion in place.
Unit 3 (v. 7a): Share food and provide shelter
The chosen fast also looks like meeting immediate needs: giving your bread to the hungry and bringing the poor who have been cast out into your house. The care is direct, tangible, and costly because it involves sharing resources and space.
Unit 4 (v. 7b): Clothe the exposed and do not evade family responsibility
When you see the naked, you must cover them rather than look away. The unit ends by narrowing the lens to close obligations: do not hide yourself from your own “flesh,” meaning do not refuse responsibility toward your own relatives or those bound to you by close social ties.