'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.

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

an instructor of foolish ones, a teacher of babes, having the form of the knowledge and of the truth in the law.