Well, you will just have to doubt. and that's OK because I don't depend on you, or any other person, to get into Heaven. There was never a time in my memory that I didn't believe in Jesus. I remember well the night I made a public profession of something I had always believed, but that was not a turning point. It was exciting and meaningful but I didn't take on any new beliefs or behavior.My wife was saved at a very early age. She remembers that there was a definite sense of sinfulness, and that it was her mother that led her to the Lord. She was a Presbyterian.
Our children all made decisions for Christ at early ages. Some in Sunday School, one with the pastor of the church, another with her mother. But they do remember.
If you ask me, "Do you know if you are married?" (could be--don't know for sure)
or, "How do you know if you are married?" (I've been married all my life).
or, When were you married?" (grew up being married).
This is how people treat salvation today.
I remember the events of my wedding, the day of my marriage. I can remember the pastor that married us, the one I married, the bridesmaids and the best man, the people who attended, etc. I especially remember the date.
I also remember the date and time I became a part of the bride of Christ, an event much more important than my marriage to my mate on earth. I remember where I was, who led to me to Christ, even the time. I remember that event very clearly.
If you tell me you have been a Christian all your life, I would doubt your salvation.
Salvation is a time when you put your faith in Christ, a conscious decision of turning to Christ and turning from the world and Satan. You may not remember everything about that day, but you must remember that there was a day, such an event in your life.
Taking your model of salvation to its logical conclusion, there would be a time in everyone’s life when he would go to hell if he died. Young children are innocent and we believe God takes care of them in death. However, as soon as that innocence passes and they can make rational decisions they are lost. And this is something that happens in an instant. We don’t know when it happens but God does. Today you have an innocent child. Tomorrow you have a child who is capable of making rational decisions (age of accountability) and he is lost. That child had better get saved fast because if he dies tomorrow night without being saved he will go to hell. This is the absurd result of saying everyone must have knowledge of the time he got saved.
"Getting saved" is an expression that is largely unheard of in the Christian traditions that have a confirmation process for young believers. This would include Methodist, Anglican, Lutheran and Catholic. They bring them in, have them recite the Apostles Creed or some variation of it, lay hands on them, and then they are full fledged members of the church. There is no conversion experience because there is nothing to convert. They are already believers and have been their entire lives.