'Tis a mighty broad brush you are wielding there!
Fair enough. And yet...
“Because they did not pursue it by faith, but as if it were based on works. They have stumbled over the stumbling stone, as it is written,
Behold, I am laying in Zion a stone of stumbling, and a rock of offense;
and whoever believes in him will not be put to shame.—Romans 9
Many PURSUE it as if by works to this day—whether through the front door or the back door—their Doctrinal Statement notwithstanding. They DO frustrate the grace of God by mixing what CANNOT be mixed.
They stumble over the stumbling stone, despite His turning the Law up to ELEVEN. They are that hostile to a free gift, yes. Those who aren’t settled on the security GOD provides—BEFORE one has ever given God a second thought—should not be preaching and teaching. They cannot confidently proclaim eternal life, only Probation.
And THAT frustrates the grace of God!