Numerous passages of Scripture declare, not only that God doesn’t change, but that His Torah, His instructions for righteousness, remain in effect.
Theological contortionist and doctrinal gymnastics aside, the seventh day Sabbath has not been changed (Ex. 20:8-11). The feasts of the Lord remain in effect (Lev. 23), and eating unclean still brings curses (Is. 66:16-17).
Please. Read what your Bible actually says, not what man made church doctrines say it says.
Set the trumpet to thy mouth. He shall come as an eagle against the house of the Lord , because they have transgressed my covenant, and trespassed against my law.
Hosea 8:1 KJV