Biblically, the Mosaic Law are the laws found in Scripture, in Exodus through Deuteronomy.
They are not any man made laws, about which Jesus had something to say (Mt 15:2-9).
I thought the passage was worth putting up.
Mat 15:2 Why do thy disciples transgress the tradition of the elders? for they wash not their hands when they eat bread.
Mat 15:3 And he (Jesus) answered and said unto them,
Why do ye also transgress the commandment of God because of your tradition?
Mat 15:4 For God said, Honour thy father and thy mother: and, He that speaketh evil of father or mother, let him die the death.
Mat 15:5 But ye say, whosoever shall say to his father or his mother, That wherewith thou mightest have been profited by me is given to God; he shall not honor his father. And
ye have made void the word of God because of your tradition.
Mat 15:7
Ye hypocrites, well did Isaiah prophesy of you, saying,
this people honoreth me with their lips; But their heart is far from me. But in vain do they worship me, Teaching as their doctrines the precepts of men.