Gal3:10:- Anyone who tries to please God by obeying the LAW is under a CURSE. The scripture say, "Everyone who doesn't obey everything in the Law is under a curse.
It is a pity that many believers that have been blood washed are still trying to earn a status with God by the works of the law as laid down by Moses. The laws God gave Moses couldn't make any perfect that was why Christ was sent to us as the easy way out.
Rom3:19-20 makes us understand that the laws of Moses was given to those that lived under the law&the aim was to make people live in guilt even the priest. The law couldn't make anyone including the priest perfect. You must understand that those laws are written for your knowledge but not to you.
The new testament is a biblical pattern on how to live your christian life because it was written to believers like you and me that are blood-washed. That doesn't mean there aren't lessons to learn in the OT but you must clearly know that we aren't bound by such mosaic laws.
According to the opening scripture, if you are trying to please God by obeying Mosaic laws, you're under a curse.
The spirit of the law is Pharisaic in nature, you must expel it with adequate knowledge of what Jesus came to do.