Jesus said " if you follow me" that is the identifier of one following Christ. He said " Keep My Commandments". But on, people have nailed them to a cross but where does it say tis, show me.
If you are talking about an old covenant, know what you are talking about first. The Old one had to do with sacrificing animals when one would break a Law and they were stoned for breaking that Law.
Jesus Christ was our Sacrifice and the killing of animals is no more. You don't kill Him over and over from year to year. Some may but there Pagan in nature.
Matthew 5:18
For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilledJesus said that not one thing would be done away with the Law until all be fulfilled. The only reason one can not understand this is that they are of God and do not have His spirit, bar none. show me different. I do not say that, God does.