@barncat says "the law was for Israel"

The Bible says

You shall have the same law for the stranger and for one from your own country; for I am the Lord your God.’ ”
Leviticus 24:22 NKJV

Let us hear the conclusion of the entire matter: Fear Elohim and guard His commands, for this applies to all mankind!
Qoheleth (Ecclesiastes) 12:13 TS2009

Do we then nullify the Torah through the belief? Let it not be! On the contrary, we establish the Torah.
Romiyim (Romans) 3:31 TS2009

barncat says "we no longer have to keep the 613 parts of the Jewish law"

I @dwells say first of all Jewish law is the talmud, all of the laws that Jewish rabbis created to add on top of the laws that God gave. The 613 commands are from the Torah and they are God's commands God's laws and they are for all of us and for today.

The one who says, “I know Him,” and does not guard His commands, is a liar, and the truth is not in him. But whoever guards His Word, truly the love of Elohim has been perfected in him. By this we know that we are in Him. The one who says he stays in Him ought himself also to walk, even as He walked.
Yoḥanan Aleph (1 John) 2:4‭-‬6 TS2009