We are to obey the Law that has been written upon our hearts by the very Lord who indwells His people.
[Isa 51:6-7 KJV] 6 Lift up your eyes to the heavens, and look upon the earth beneath: for the heavens shall vanish away like smoke, and the earth shall wax old like a garment, and they that dwell therein shall die in like manner: but my salvation shall be for ever, and my righteousness shall not be abolished. 7 Hearken unto me, ye that know righteousness, the people in whose heart [is] my law; fear ye not the reproach of men, neither be ye afraid of their revilings.
When men revile you for not pursuing the living of the Law that they have tasked upon themselves, allegedly as some sort of measure of your love for God, or of solidifying your place in eternity, remember the words inspired by the Lord through such prophets as Isaiah, quoted above. Do the Law that He has placed within and upon your heart. WHO is in your heart? For those who truly follow Christ Jesus, He is the Spirit of the Most High, and that Spirit will guide you in every way.
[1Jo 2:27 KJV] 27 But the anointing which ye have received of him abideth in you, and ye need not that any man teach you: but as the same anointing teacheth you of all things, and is truth, and is no lie, and even as it hath taught you, ye shall abide in him.
When you are in Christ Jesus, He is within you, and will teach you all things, as is emphatically stated above. The legalists will harangue , clamor and clink their chains of enslavement, beckoning you to become enslaved with them in their chains. The choice is yours. Hear and obey the Lord, or hear and obey them.
Jr