Jeremiah 16:10-11

10“When you tell these people all this and they ask you, ‘Why has the LORD decreed such a great disaster against us? What wrong have we done? What sin have we committed against the LORD our God?’ 11then say to them, ‘It is because your ancestors forsook me,’ declares the LORD, ‘and followed other gods and served and worshiped them. They forsook me and did not keep my law.