Grind the faces of the poor

1. Isa. 3: 15
   15 What mean ye that ye beat my people to pieces, and grind the faces of the poor? saith the Lord God of hosts.
2. 2 Ne. 13: 15
   15 What mean ye? Ye beat my people to pieces, and grind the faces of the poor, saith the Lord God of Hosts.
3. 2 Ne. 26: 20
   20 And the Gentiles are lifted up in the pride of their eyes, and have stumbled, because of the greatness of their stumbling block, that they have built up many churches; nevertheless, they put down the power and miracles of God, and preach up unto themselves their own wisdom and their own learning, that they may get gain and grind upon the face of the poor.