Why won't you acknowledge the scriptures?
John 1:17 For the law was given through Moses; grace and truth came through Jesus Christ.
Again...and again...and again...each time to no avail...where you are concerned...
John 1 opens with things just before and after the Cross.
John then proceeds to go into a narrative of events prior to the Cross.
In other words, under the Law for righteousness.
He then ends John on the same note with which He began John; which is what John 1:17 is talking about - ISRAEL'S PROPHESIED Grace the Christ made possible for them by the Cross, that they might then be enabled to keep The Law as Sons ("their adoption").
Jesus was born under, lived under, and emphasized...obeying Moses: The Law.
Matthew 8:4 And Jesus saith unto him, See thou tell no man; but go thy way, shew thyself to the priest, and offer the gift that Moses commanded, for a testimony unto them.
That right there is Leviticus 14.
No matter what you erroneously continue to read into it...
He lived under the Law; emphasized living under the Law and added to that the tenents of the Kingdom their Law and their Prophets did say should come.