'Demands' in the Bible

I thought, "Surely it is only the ignorant poor who act this way. They act like fools because they do not know what the Lord demands. They do not know what their God requires of them.

I will go to the leaders and speak with them. Surely they know what the Lord demands. Surely they know what their God requires of them." Yet all of them, too, have rejected his authority and refuse to submit to him.