I know that this will be impossible for you to understand, but I will post it for the benefit of others.
2Pet 3:1 (AKJV/PCE)
(3:1) This second epistle, beloved, I now write unto you; in [both] which I stir up your pure minds by way of remembrance:
This is Peters second epistle to YOU. Who is the YOU? That's pretty simple:
1Pet 1:1 (AKJV/PCE)
(1:1) Peter, an apostle of Jesus Christ, to the strangers scattered throughout Pontus, Galatia, Cappadocia, Asia, and Bithynia,
Peter is writing to the STRANGERS scattered throughout GENTILES lands. These are the SAME people that James writes to:
Jas 1:1 (AKJV/PCE)
(1:1) James, a servant of God and of the Lord Jesus Christ, to the twelve tribes which are scattered abroad, greeting.
Since Peter and James are part of the TWELVE apostles that will judge the TWELVE tribes of Israel, it's easy to understand the nature of their DOCTRINE. It's NOT the same DOCTRINE that the RISEN and ASCENDED LORD Jesus Christ appeared and gave to the apostle of the gentiles, Paul.
It's all really easy to understand; but you don't.