In Christ, we are made alive!
Christ was raised because of our justification – our righteousness! He vindicates our righteousness through His resurrection! When the sin and lying identity, the fake man that never was the real us, is put down through His death, the innocent original self that we really are is revealed, righteous and pure and good! And since you can’t keep a good man down, Jesus cannot be kept down in the grave, and neither can we!
Death has no hold on Him, there is no sin on Him that would lead to death, and no law or performance way of thinking there to demand death anyway, for that whole system has also been set aside and separated from Him and us at His death.
So there is nothing to keep Christ – or us – in the grave!
His resurrection is proof of my innocence, proof that my original self God created is and was always good, pure and right in His eyes, fit for relationship with Him, compatible with Him, in His image of love and thus a love being just like Himself!