‘You are therefore to keep all My statutes and all My ordinances and do them, so that the land to which I am bringing you to live will not spew you out. ‘Moreover, you shall not follow the customs of the nation which I will drive out before you, for they did all these things, and therefore I have abhorred them.‘Hence I have said to you, “You are to possess their land, and I Myself will give it to you to possess it, a land flowing with milk and honey.” I am the LORD your God, who has separated you from the peoples. You are therefore to make a distinction between the clean animal and the unclean, and between the unclean bird and the clean; and you shall not make yourselves detestable by animal or by bird or by anything that creeps on the ground, which I have separated for you as unclean. Thus you are to be holy to Me, for I the LORD am holy; and I have set you apart from the peoples to be Mine.
What about the Other Old Testament Laws?
But before faith came, we were kept in custody under the law, being shut up to the faith which was later to be revealed. Therefore the Law has become our tutor to lead us to Christ, so that we may be justified by faith. But now that faith has come, we are no longer under a tutor. For you are all sons of God through faith in Christ Jesus (Galatians 3:23-26).
"Do not think that I came to abolish the Law or the Prophets; I did not come to abolish but to fulfill” (Matthew 5:17).
God, after He spoke long ago to the fathers in the prophets in many portions and in many ways, in these last days has spoken to us in His Son, whom He appointed heir of all things, through whom also He made the world (Hebrews 1:1-2)
"He who rejects Me and does not receive My sayings, has one who judges him; the word I spoke is what will judge him at the last day. (John 12:28)Final Thoughts
The Old Testament should still be studied, but with the understanding that it is not a law we will be judged by.
(Romans 15:4)For whatever was written in earlier times was written for our instruction, so that through perseverance and the encouragement of the Scriptures we might have hope.By Cliff Sabroe - Quotes from NASB, Image from WikiPaintings