'Teachers' in the Bible

Then sent I for Eliezer, for Ariel, for Shemaiah, and for Elnathan, and for Jarib, and for Elnathan, and for Nathan, and for Zechariah, and for Meshullam, chief men; also for Joiarib, and for Elnathan, who were teachers.

I have more understanding than all my teachers; For thy testimonies are my meditation.

Neither have I obeyed the voice of my teachers, Nor inclined mine ear to them that instructed me!

And though the Lord give you the bread of adversity and the water of affliction, yet shall not thy teachers be hidden anymore, but thine eyes shall see thy teachers;

Thy first father sinned, and thy teachers have transgressed against me.