You speak of self-maintained salvation as if it's a sin and not what Jesus taught.
You speak of salvation as if it's guaranteed to you and it is NOT. It is INDEED based on your obedience to God after your initial salvation.
Please read Matthew 7:24-27 (this is how scripture is posted, BTW, something you refuse to do)
and answer these questions:
1. WHO did the building --- the person or Jesus?
2. What did the smart person do in verse 24?
3. Why did the house not fall? Because Jesus built it or because it was FOUNDED on the Rock?
4. What did the foolish man do? What is the sand? (maybe anything that is not the Rock)?
5. This house that was built on sand...what happened to it?
If Jesus is comparing to methods of building and HE IS THE ROCK and that is the smart man and the smart man is building UPON THE FOUNDATION of the Rock....The Rock itself is NOT building the house...
Then anything else upon which our faith/house is built is NOT THE ROCK.
Easy. No Greek necessary.
Mathew 7:24-27
The Two Foundations
24“Therefore everyone who hears these words of Mine and acts on them, may be compared to a wise man who built his house on the rock.
25“And the rain fell, and the floods came, and the winds blew and slammed against that house; and yet it did not fall, for it had been founded on the rock.
26“Everyone who hears these words of Mine and does not act on them, will be like a foolish man who built his house on the sand.
27“The rain fell, and the floods came, and the winds blew and slammed against that house; and it fell—and great was its fall.”