“Do not rob the poor!
Because they are poor.
Do not crush the afflicted
At the gate.
Yahweh pleads their cause.
He despoils of life
Those who despoil them.”
Simply put, do not rob poor people because they are poor. The point is that poor people have little chance to resist a robber. You were not to crush people at the gate because that is where the accusations and trials took place. Yahweh will plead the case of the poor. If you plunder or take advantage of the poor, Yahweh will take advantage of you.
Eugene Finnegan Bible Project 