Jeremiah 17:1 in the King James Version
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;
Context
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.
2 Even their children remember their altars and their Asherah poles by the green trees on the high hills.