1PETER 1:3.
Blessed be the God and Father of our Lord Jesus Christ, which according to His abundant mercy
has begotten us again unto a lively hope by the resurrection of Jesus Christ from the dead,...
The resurrection is a part of the gospel, which includes the cross . . .
"Moreover, brethren, I declare unto you the gospel which I preached unto you, which also ye have received, and wherein ye stand; By which also ye are saved, if ye keep in memory what I preached unto you, unless ye have believed in vain. For I delivered unto you first of all that which I also received, how that Christ died for our sins according to the scriptures; And that he was buried, and that he rose again the third day according to the scriptures" (I Corinthians 15:1-4).