King James Version
All therefore whatsoever they bid you observe, that observe and do; but do not ye after their works: for they say, and do not.English Standard Version
so practice and observe whatever they tell you--but not what they do. For they preach, but do not practice.New International Version
So you must obey them and do everything they tell you. But do not do what they do, for they do not practice what they preach.