Note 1 at Mt 15:5: De 4:2 clearly states, "Ye shall not add unto the word which I command you, neither shall ye diminish ought from it." This same thought is repeated in the New Testament in Re 22:18-19 with very stiff penalties. Religious people are very swift to observe the part about not diminishing any of God's commandments, but there seems to be an unwritten law that adding to them is okay. Every denomination has its own set of "dos and don'ts" that aren't found in Scripture, and just like with these hypocritical Pharisees, these unwritten laws usually have to do with outward appearance. We need to remember that adding to God's commandments is just as bad as taking away from them. We need to speak when the Bible speaks, and be silent when the Bible is silent.