Jeremiah 17:1

17:1 The sin of Judah is written with a pen of iron, [and] with the point of a diamond: it is engraved on the tablet of their heart, and on the horns of your altars;
-World English Bible

Other Translation

17:1 The sin of Judah [is] written with a pen of iron, [and] with the point of a diamond: [it is] graven upon the table of their heart, and upon the horns of your altars;
-King James Version