# Why do you crush my people and grind the faces of the poor?

"I am angry with you evil men because you are crushing my people and grinding the faces of the poor!" 

# crush my people

"cruelly harm my people" 

# grind the faces of the poor

"harm the poor and make them suffer"

# This is the declaration of the Lord Yahweh of hosts

"this is what the Lord Yahweh of hosts has declared" or "this is what I, the Lord Yahweh of hosts, have declared"