With genuine salvation comes the knowledge and the assurance that you are saved. This lesson provides you with the truth that you need to be saved and know it.
There are many self-deceived believers today. Many are made to believe that they are saved when they really are not. We need to bring up issues like this to help such people re-evaluate their salvation.
This discussion is not about judging other peoples' salvation. It is a crucial discussion to have with people especially now that many things have become very superficial, including the profession of faith.
Those who are used to doing something to earn something misunderstand salvation by faith. This article explains WHY you need to be saved, and how to be saved.