Deuteronomy 12:32 ASV
(32) What thing soever I command you, that shall ye observe to do: thou shalt not add thereto, nor diminish from it.
Matthew 28:20 ASV
(20) teaching them to observe all things whatsoever I commanded you: and lo, I am with you always, even unto the end of the world.
Mark 7:7 ASV
(7) But in vain do they worship me, Teaching as their doctrines the precepts of men.