Please read the following declaration by Paul.
1 Corinthians 15:1-4
Now I make known to you, brothers and sisters, the gospel which I preached to you, which you also received, in which you also stand, by which you also are saved, if you hold firmly to the word which I preached to you, unless you believed in vain. For I handed down to you as of first importance what I also received, that Christ died for our sins according to the Scriptures, and that He was buried, and that He was raised on the third day according to the Scriptures...
There is no doubt that Paul is reciting a very early creed, that he received.
Notice the phrase, "the gospel".
If you believe this then you also are saved.