Romans 2:17-21

What about you? You call yourself a Jew; you depend on the Law and boast about God; you know what God wants you to do, and you have learnt from the Law to choose what is right; you are sure that you are a guide for the blind, a light for those who are in darkness, an instructor for the foolish, and a teacher for the ignorant. You are certain that in the Law you have the full content of knowledge and of truth. You teach others — why don't you teach yourself? You preach, “Do not steal” — but do you yourself steal?