If you aren't saved than you should believe the gospel of the Lord Jesus Christ.

1Co 15:1  Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand; 
1Co 15:2  By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain. 
1Co 15:3  For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; 
1Co 15:4  And that he was buried, and that he rose again the third day according to the scriptures: 

Col 1:14  In whom we have redemption through his blood, even the forgiveness of sins: 

Act_16:31  And they said, Believe on the Lord Jesus Christ, and thou shalt be saved, and thy house.