The Old Testament is the New Testament concealed. And the New Testament is the Old Testament revealed. The Lord Jesus Christ is in every book of the Old Testament. The sacrifices, ceremonies and feasts and festivals were all pictures of things to come, pictures of the Lord and what he was to accomplish. We are to walk by faith and in love and truth, Jesus Christ is all that is left, the old law is ready to fade away. Walk righteously, that all may know you are of the Lord. And forsake not the word, for even that which is old is given to you is good for knowledge and wisdom and for learning and reproach. God bless, brother.