I’ve heard it explained that the ceremonial law is no longer in effect after Jesus’ death, burial and resurrection. However, the moral law is in effect for all time.
It is a CONTRACT; a BINDING legal agreement between two or more parties.
God made an agreement between Himself and a select group of people - the CHOSEN race: Jews.
HE said that if they'd do something then He'd do something.
If you ain't Jewish; then you have NO part of that agreement.
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Galatians 3:15-16 (niv)
15 Brothers and sisters, let me take an example from everyday life. Just as no one can set aside or add to a human covenant that has been duly established, so it is in this case. 16 The promises were spoken to Abraham and to his seed. Scripture does not say “and to seeds,” meaning many people, but “and to your seed,” meaning one person, who is Christ.