"God Forbid" - The Verity of the 3 Angel's Messages

"When we preach the keeping of God’s commandments, we are simply echoing the words of the apostle John: “For this is the love of God, that we keep His commandments: and His commandments are not grievous.” 1 John 5:3.

We are simply calling on the

justified-through-faith child of God

to live in obedience to God.

Paul, apparently, feared that some who read what he had written
about men not being justified by the law might wrongly conclude that God’s grace frees us from any obligation to keep the law. He states the matter thus: “What then? Shall we sin, because we are not under the law, but under grace? God forbid.”
Paul, who knew that “sin is the transgression of the law,” is really asking this: Shall we transgress the law because we are under grace?
He answers, “God forbid.”
F.D.Nichol

verity 

Synonyms of verity

1: the quality or state of being true or real

2: something (such as a statement) that is true

especially : a fundamental and inevitably true value

such eternal verities as honor, love, and patriotism