Well if your under Moses...keep all the Commandments ...if you under Christ Keep His Commandment....which is the only way to fulfill what the law demanded.
New International Version Mt 23:2-3
"The teachers of the law and the Pharisees sit in Moses' seat. So you must be careful to do everything they tell you. But do not do what they do, for they do not practice what they preach."
King James Bible Mt 23:2-3
"Saying, The scribes and the Pharisees sit in Moses' seat:
All therefore whatsoever they bid you observe, that observe and do; but do not ye after their works: for they say, and do not."
Shem Tob's Hebrew Mattithyah
Mattithyah 23:2-3, "The Pharisees and Sages sit upon the seat of Mosheh. Therefore, all that he (Mosheh) says to you, diligently do, but according to thier takanot (reforms) and thier ma'asim (precedents) do not do, because they talk (Torah) but they do not do."
Takanot: reforms or enactments that (falsely) "change or add" to Yahweh's Law.
Ma'asim: acts or deeds that serve as precedents for rabbinic law.
Both Takanot and Ma'asim are laws of the Talmud.