'Instructor' in the Bible

And Zillah she also bare Tubal-Cain, an instructor of every artificer in brass and iron; and a sister of Tubal-Cain is Naamah.

And Kenaniah, chief of the Levites in singing, [was to be] an instructor in singing because he understood.

The instructor of a scorner Is receiving for it -- shame, And a reprover of the wicked -- his blemish.