You shall not add to the word that I command you, nor take from it, that you may keep the commandments of YHWH your God that I command you.
Deuteronomy 4:2

No doctrine can be authoritative unless it is firmly based in #torah.

How have you added to God's Law? Do you keep new "sacraments"? Have you invented new sins?

How do you subtract from God's Law? Have you rejected His holy days? Do you say that God doesn't care what you eat?