Jeremiah 15:19-21

Thus the Lord answered me: If you come back and I take you back, in my presence you shall stand; If you utter what is precious and not what is worthless, you shall be my mouth. Then they will be the ones who turn to you, not you who turn to them. And I will make you toward this people a fortified wall of bronze. Though they fight against you, they shall not prevail, For I am with you, to save and rescue you—oracle of the Lord. I will rescue you from the hand of the wicked, and ransom you from the power of the violent.