It is Paul alone that separates Law from Grace. Those who don't fully accept and believe Pauls' writings are effectively and willingly placing themselves under the law...the Mosaic law...all 613 of them, starting with the 10 Commandments. Starting with Moses, Israel was placed under Gods' law as given to Moses. Israel remains under the law today.
Jesus entire earthly ministry was under the law, not grace as Galatians 4:4-5 shows:
Gal 4:4 But when the fulness of the time was come, God sent forth his Son, made of a woman, made under the law,
Gal 4:5 To redeem them that were under the law, that we might receive the adoption of sons. (KJV)
What about following the law? Here's a couple of verses from Paul -
Romans 3:20 Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.
Romans 3:26 To declare, I say, at this time his righteousness: that he might be just, and the justifier of him which believeth in Jesus.
Romans 3:27 Where is boasting then? It is excluded. By what law? of works? Nay: but by the law of faith.
Romans 3:28 Therefore we conclude that a man is justified by faith without the deeds of the law.
Romans 3:29 Is he the God of the Jews only? is he not also of the Gentiles? Yes, of the Gentiles also:
Romans 2:12 For as many as have sinned without law shall also perish without law: and as many as have sinned in the law shall be judged by the law;
Romans 7:7 What shall we say then? Is the law sin? God forbid. Nay, I had not known sin, but by the law: for I had not known lust, except the law had said, Thou shalt not covet.
James 2:10 For whosoever shall keep the whole law, and yet offend in one point, he is guilty of all. (KJV) (underlining mine)
And Pauls' writing about grace...
Romans 11:5 Even so then at this present time also there is a remnant according to the election of grace.
Romans 11:6 And if by grace, then is it no more of works: otherwise grace is no more grace. But if it be of works, then is it no more grace: otherwise work is no more work.
Ephesians 2:8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:
Ephesians 2:9 Not of works, lest any man should boast. (KJV)
Read Hebrews 11. It's ALL about FAITH without works!
Now, who wants to be judged under the law, by their works?
THE GOSPEL: (1 Corinthians 15:1-4)
1Co 15:1 Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand;
1Co 15:2 By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.
1Co 15:3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
1Co 15:4 And that he was buried, and that he rose again the third day according to the scriptures: (KJV)