Many people twist Shaul's words to their own destruction.
If you think Shaul taught against Yahweh's Law you are in this category.
Some people heard Shaul was teaching against Yahweh;s Law and Shaul and those around him meade it clear he did not teach this.
Young's Literal Translation - Acts 21:21 & 24, "and they are instructed concerning thee, that apostasy from Moses thou dost teach to all Jews among the nations, saying -- Not to circumcise the children, nor after the customs to walk." "these having taken, be purified with them, and be at expence with them, that they may shave the head, and all may know that the things of which they have been instructed concerning thee are nothing, but thou dost walk -- thyself also -- the law keeping."
Romans3:31, "Are we then doing away with the Law through the faith? By no means! Rather, we establish the Law!"
Romans 7:25, "Thanks be to Yahweh, I have deliverance through Yahshua Messiah our King! So then, with this same mind, I myself serve the Law of Yahweh, while in the flesh that is yet subject to the law of sin."
You see one who worships in Spirit and truth follows Yahweh's Law, not to be saved but because he is saved.
Romans 2:4-11, “Or do you despise the riches of His kindness, forbearance, and longsuffering; not realizing that Yahweh’s kindness is meant to lead you to repentance? But according to your stubborn and impenitent mind you are storing up wrath for yourself for the day of Yahweh’s wrath, when the righteous judgment of Yahweh will be revealed; when He will reward each one according to his works: to the ones on the one hand, who, by patient persistence in doing righteousness, seek for glory, honor and immortality, He will give eternal life. But to the ones on the other hand, who are contentious, and do not obey the truth, but obey unrighteousness, He will give indignation and wrath.” Tribulation and anguish, upon every soul of man who does evil: to the Yahdai(Jew) first, and also to the Greek (Gentile) But glory, honor, and peace to every man who works righteousness: to the Yahdai first, and also to the Greek. For there is no respect of persons with Yahweh.”
Acts 24:14, "But I confess this to you, that after the way which they call heresy--so I worship the Father of my fathers, believing all things which are written in the Law and in the Prophets."