Yeremia 17:1

“Dhambi ya Yuda imechorwa kwa kalamu ya chuma, imeandikwa kwa ncha ya almasi, kwenye vibao vya mioyo yao na kwenye pembe za madhabahu zao.

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;