What is wrong with…?
Jesus warned against the doctrine of the Pharisees and the Sadducees (Matthew 16:11) because they added to the law.
Jesus informs us,” Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled.” (Mathew 5:18) Revelation 21:2 refers to the future time when the holy city, new Jerusalem comes down out of heaven.
Jesus repeatedly quoted from Jeremiah, Isaiah, and the prophets and was our example of keeping the law in the flesh.
So if Jesus came speaking his Father’s words (John 8:28), if he refers us to hear Moses and the prophets (Luke 16:31), and if all scripture is for instruction in righteousness (2 Timothy 3:16) then why do some murmur against the ten commandments or scriptures that tell one not to have sex with near kin or animals, and not to eat things that are abominable (Isaiah 66:17, Leviticus 11, Genesis 7:2)?
We are warned in Colossians 2:8 about following the traditions of men. However, it seems that some have made it a tradition to cut off the nose to spite the face.