Well, did he? Did Jesus add to God’s law?
Why is this important? Because according to Deuteronomy 4 and 13, it is forbidden to add to or take away from God’s Law to Moses. No exception is given to this law, not for priests or anointed kings/messiahs.
So did he add to it?
What did Jesus in the gospels teach? No man gets to God except through Jesus, except through accepting Jesus. He teaches that if a man denies Jesus, that man will be rejected by God.
Is this message explicitly recorded in the Torah, that a man must accept Jesus to be right with God? No, numerous times in Deuteronomy, God revealed what he requires from not just his people, but everyone. He requires commitment and obedience to the instructions he gave to Moses.
So Jesus says “no, that’s not enough; you must accept him, the supposed son of God.”
So Jesus does add to Torah, he adds the necessity of believing in Jesus. That makes him one who broke the law and not some sinless person.