There's a whole heck of a lot of doctrinal detail there that I'm not certainly one has to believe in order to get saved. A lot of that understanding would come after, not before.
- God exists. He is the Creator of all things and He is holy, perfect and just.
- We have, by doing evil things, rebelled against God.
- We, having rebelled against the God who gave us our life and is Life itself, deserve death.
- God, being unwilling that all should perish, provided for Himself a propitiation (an atoning sacrifice) in the person of His only begotten Son, God the Son, whom we call Jesus.
- Jesus bore the sins of the world and died on the cross on our behalf.
- If you call upon the name of the Lord (i.e. acknowledge your need of a savior and that He is that Savior) and believe that God raised Him from the dead, you will be saved.
That, I'd say, is the bare bones of the gospel message and even that may have a bit more detail than is strictly required for one to be saved.
Now, as heretical and irrationaly insane as Calvinist and Catholic doctrine might be, I know of no Calvinist or Catholic that denies any of the above. They may add to it and they may argue about the "whys" and the "wherefores" but those Calvinists/Catholics that deny the above facts of the gospel are few and far between.
Now, when a Calvinist starts saying things that are just outright blasphemous, one might start to wonder about whether they are trusting in the wrong god. That might well be the case in some cases but I think its a far and wide over generalization to make the statement that, "Calvinist, Catholics and other religions do not believe the life changing Gospel of Jesus Christ. They are outside of the faith and are under the judgment of God."
Resting in Him,
Clete
