No. Never was, that's a really modern theology and interpretation of Christ's message in Holy Scripture.
we cannot earn and we cannot keep our salvation through works, deeds, or beliefs.
I think what we do shows what we really believe. They're inseparable as Christ taught.
But I'm really surprised you include "beliefs" in your post here.
I thought we would agree on one thing, that "whoever believes in him shall not perish but have eternal life."
In your view, is this not part of "beliefs" ?
For God so loved the world that He gave his only begotten Son, that whosoever should believe on Him should not perish but have everlasting life.
For by Grace are you saved, it is a gift of God, not of works, lest any man should boast.
My Father, which gave them me, is greater than all; and no man is able to pluck them out of my Father’s hand.
It is repeated over and over and over.
In regards to the beliefs I was referring to: I believe I am asking forgiveness for all sins I have committed to retain my salvation.
I believe I am going to the right church, enough times a week. I am tithing enough, I am ... well you name it.
The only route to salvation is to accept Jesus Christ as your Lord and Saviour.
You cannot earn salvation with enough good works, and you certainly cannot “keep” salvation with enough good works, because we have all sinned and fallen short of the glory of God. There is none righteous, no, not one.