Romans 2:20 in the World English Bible
a corrector of the foolish, a teacher of babies, having in the law the form of knowledge and of the truth.
Context
19 And art confident that thou thyself art a guide of the blind, a light of them which are in darkness,
20 An instructor of the foolish, a teacher of babes, which hast the form of knowledge and of the truth in the law.
21 Thou therefore which teachest another, teachest thou not thyself? thou that preachest a man should not steal, dost thou steal?