(Sorry, I thought I was replying and not posting.)
Our Creator instituted the Sabbath at the Creation of the world, before there were Israelites. He made the Sabbath for man, not, the Jews.
Obeserving days,months...again, the feasts,of the ceremonial law and not, the Ten Commandments.
Jesus said, "Not every one that saith unto me, Lord, Lord, shall ENTER into the kingdom of heaven; but he that doeth the will of my Father which is in heaven. MANY will say to me in that day, Lord, Lord have we not...in thy name done many wonderful works? ("Christians" do works in His name.) And then will I profess unto them, I NEVER KNEW YOU: depart from me ye that work iniquity." (Lawlessness)Matt 7:21-23.
The flip side is "And hereby we do know that we know him, if we keep his commandments. He that saith, I KNOW HIM, and keepeth not his commandments, is a LIAR, and the truth (Jesus: John 14:6; the law: 119:142, and ALL the commandments: Ps 119:151) is not in him." 1 John 2:3,4.
If you don't keep His commandments, it is evidence, that, you are not under the New Covenant. Jer 31:31-34; Heb 8:10.
When Jesus gave us, the "Two Greatest Commandments," He was quoting the law. Deut 6:5; Lev 19:18.
These two commandments, are a summation of the Ten: If you love the Lord, supremely, you will keep the first four. If you love your neighbour as yourself, you will, also, keep the last six.
"By THIS we know that we love the children of God (#2), when we love God and keep his commandments. For THIS is the love of God, (#1) that we keep his commandments: and his commandments are not grievous." 1 John 5:2,3.
Do you find His commandments grievous? Then, how can you claim to be under the New Covenant? Jer 31:31-34; Heb 8:10.
Are you saying, that, we can worship other gods, bow down to graven images, take His name in vain, profane His holy day, dishonor our parents, murder, commit adultery, steal, covet and walk with a holy God?
How foolish!
The old man was conceived in sin. "The plowing of the wicked is sin." Without a new heart and His Spirit, all we do is sin. Why? Because, it is our nature. When we are born-again and have HIs nature within us, we are to crucify the flesh with it's passions and lusts and walk in His Spirit. "In Him is no sin" - "(the transgression of the law." 1 John 3:13.)He is holy. If we want to walk with Him, we must walk in holiness.
"What shall we say then? Shall we CONTINUE IN SIN (the "transgression of the law") that grace may abound? God forbid. How shall we that are dead to sin, live any longer therein?" Rom 6:1.
"By faith...Abraham obeyed." Heb 11:8. Faith and obedience to His commandments go hand in hand.
"Who forgiveth all thine iniquities: who healeth all thy diseases...As far as the east is from the west, so far hath he removed our transgressions from us...To such as keep his covenant, and to those that REMEMBER his commandments, to do them" Ps 103.
