I've stated the answer so often that I believe your resistance to considering it may stem from fear of the consequences, meaning the thought of losing the results of all the time, energy and resources invested in learning the worldview that you now possess, making it waste . It must seem to be too horrifying to even imagine, not to mention how it can lead to attracting the hatred of those who will then consider you to be a traitor.
Let's try once more, bearing in mind what is at stake:
John 5:44 How can you believe, if you accept praise from one another and don't seek the praise that comes from the only God?
Plainly, we are saved from a life lived, at the end of which we have nothing to show for. When we die, our achievements fade away, are inconsequential, bringing no profit or reward to us. This is not just a Christian issue, Stoic and Epicurean thought having attempted to resolve it, as already mentioned, as did the various rabbinical schools, with a special mention to the solution offered by the Teacher of Righteousness, found in the Qumran manuscripts.
God's Way of Fulfillment
Israel lived a futile life in Canaan. God initiated a move that put her in Egypt so that this was exposed. When Israel realized worldly living was futile, resulted in fleeting fruit, she took the opportunity offered by God to change her situation.
God put Israel in danger and the rescued her, repeating this process several times.
This was to teach her that to be fulfilled, she needed to die to herself.
Israel was terrified. Yes, God had delivered, but what was the guarantee that it would always work?
The revelations are described as spiritual food and drink:
1 Corinthians 10:1For I do not want you to be unaware, brethren, that our fathers were all under the cloud and all passed through the sea;
2and all were baptized into Moses in the cloud and in the sea;
3and all ate the same spiritual food;
4and all drank the same spiritual drink, for they were drinking from a spiritual rock which followed them; and the rock was Christ.
But it didn't benefit all:
5Nevertheless, with most of them God was not well-pleased; for they were laid low in the wilderness.
Hebrews 4:2 indeed we have had good news preached to us, just as they also; but the word they heard did not profit them, because it was not united by faith in those who heard.
3For we who have believed enter that rest, just as He has said,
“AS I SWORE IN MY WRATH,
THEY SHALL NOT ENTER MY REST,”
although His works were finished from the foundation of the world.
4For He has said somewhere concerning the seventh
day: “AND GODRESTED ON THE SEVENTH DAY FROM ALL HIS WORKS”;
5and again in this
passage, “THEY SHALL NOT ENTER MY REST.”
6Therefore, since it remains for some to enter it, and those who formerly had good news preached to them failed to enter because of disobedience,
7He again fixes a certain day, “Today,” saying through David after so long a time just as has been said before,
“TODAY IF YOU HEAR HIS VOICE,
DO NOT HARDEN YOUR HEARTS.”
To avoid digression from the question we will not discuss in detail what God required for perfection, fulfillment.
The answer to the question, again, is: we are saved from working for treasure that perishes, to working for lasting treasure.