your striving over a word that does not change what Paul said - Read it again until you get it.
We are no longer under the law - its gone - it only remains to judge and condemn unbelievers - the Jew first and also to the Gentile.
The Gospel is for believers - the Jew first and also the Gentile.
You who seek to be under the Law are astranged/separated from Christ. Paul used the Law to win those under the Law to Christ.
We are both delivered from the law and are also under it to Christ (1 Corinthians 9:21 (kjv)). (I am not striving about the word; I am simply believing the kjv over your translation. In fact, I believe that in departing from the authorized version, you have chosen a different word and therefore you are the one who is striving about words).
We are not under the law (Romans 6:14), are dead to the law (Romans 7:4, Galatians 2:19), and are delivered from the law (Romans 7:6) as concerning condemnation.
But as concerning obedience, we are under the law (1 Corinthians 9:21 (kjv)).
See also Hebrews 8:8-10, Hebrews 10:16, Romans 8:7, Romans 8:4, 1 John 5:3, 2 John 1:6, Romans 13:8-10; Romans 5:5; and 1 John 2:3-6.
All of these scriptures denote an obedience to the law as concerning the believer in Christ.
See also James 1:22-25; and realize that in James 2:10-12, the perfect law of liberty is the ten commandments; since the commandments of "Thou shalt not kill" and "Thou shalt not commit adultery" are included in the law of liberty according to that passage.
Therefore, if we look into the ten commandments and are obedient to them, we will be blessed in what we do.
Here, the law is no longer a condemning taskmaster but has been transferred into becoming a set of wisdom principles that, if we are obedient to them, we will be blessed in what we do (James 1:25).
For it is written, that whosoever turns his ear away from hearing the law, that even his prayer shall become an abomination (Proverbs 28:9)