'Style' in the Bible

That with an iron style and lead they were graven in the rock for ever!

And Jehovah said to me, Take thee a great tablet, and write thereon with a man's style, concerning Maher-shalal-hash-baz.

The sin of Judah is written with a style of iron, with the point of a diamond, engraven upon the tablet of their heart, and upon the horns of your altars;