OT.filter - dourh harder:

dourh@Jeremiah:5:3 @ O Lord, thy eyes are upon truth: thou hast struck them, and they have not grieved: thou hast bruised them, and they have refused to receive correction: they have made their faces harder than the rock, and they have refused to return.

dourh@Ezekiel:3:8 @ Behold I have made thy face stronger than their faces: and thy forehead harder than their foreheads.