What mean ye that ye beat my people to pieces, and grind the faces of the poor? saith the Lord GOD of hosts.
What mean ye (that) ye beat my people to pieces? - What right have ye to beat? etc (Psalms 94:5; Micah 3:2-3.)
Grind - by exactions, so as to leave them nothing.
The faces of the poor. "Faces," the persons, with the additional idea of it being openly and palpably done. Presence is expressed by 'face.'