what about the 'if'
By which also ye are dsaved, if ye ||keep in memory †what I preached unto you,
That is a very good question.
I have not seen a satisfactory answer posted.
I Corinthians 15:1-4 KJV
Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand;
2 By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain.
3 For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures;
4 And that he was buried, and that he rose again the third day according to the scriptures:
The Phillips NT answers some of you concerns.
1 Corinthians 15:1-8J.B. Phillips New Testament (PHILLIPS)
A reminder of the gospel message: the resurrection is an integral part of our faith
15 1-2 Now, my brothers, I want to speak about the Gospel which I have previously preached to you, which you accepted, in which you are at present standing, and by which, if you remain faithful to the message I gave you, your salvation is being worked out—unless, of course, your faith had no meaning behind it at all.
3-8 For I passed on to you Corinthians first of all the message I had myself received—that Christ died for our sins, as the scriptures said he would; that he was buried and rose again on the third day, again as the scriptures foretold. He was seen by Cephas, then by the twelve, and subsequently he was seen simultaneously by over five hundred Christians, of whom the majority are still alive, though some have since died. He was then seen by James, then by all the messengers. And last of all, as if to one born abnormally late, he appeared to me!
We did Romans 10:9-10 to receive salvation.
That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
Half of the prerequisites to receive salvation deals with God having raised Jesus Christ from the dead.
there are two foundational truths that we must do to receive the gift of salvation.
1. Confess with the mouth the lord Jesus
2. Believe in our heart that God raised him from the dead.
Once we have done that God gives us the gift of salvation, we are saved.
But should we discard those truths now that we are saved?
God forbid.
We must learn to keep Jesus lord in our lives Ephesians 1:1 "faithful in Christ Jesus "
and
we must continue to believe in that love and power that God used to raise Jesus Christ from the dead. Ephesians 1:19-20
You ever heard the expression, "God gave you brains, now use it!"
God gave us salvation, we are to use it.
How?
Basically, by continuing in the two truths that we did to receive salvation.
We are to work out, or energize our salvation so it does us and others good right now in this life. Philippians 2:12-13
We are not to receive the gift of salvation and not open it up.
We are to find out what it is, what we can and are supposed to do with now and live it. I John 5:13
Christians have enormous and powerful potential, if we only learn to use it.
Colossians 1:27 "Christ in you"
John 14:12 Same works as Jesus Christ and greater works
We are not to sit on this salvation, we are to live powerfully to glorify God because that is God's intent for those who chose to receive the gift.
Ephesians 2:8-10