Romans 2:19-21

¹⁹Perhaps you are confident that you are a guide to the blind, a light to those who are in the dark, an instructor of the unintelligent,

²⁰and a teacher of the childish, because in the Law you possess the outline of all knowledge and truth.

²¹Why, then, you teacher of others, don't you teach yourself? Do you preach against stealing, and yet steal?