In contrast to man"s treatment of Jesus, God raised Him from the grave after three days (cf. Acts 17:31). Jesus also appeared to selected individuals whom God chose to be witnesses of His resurrection. Among these was Peter, who even ate and drank with the risen Lord, proof that He really was alive. [source][source][source]
"The resurrection appearances were not made to the people at large. The reason appears to have been that those who saw Jesus were constituted to act as witnesses to the many people who could not see him, and this obligation was not laid on people who were unfit for it but only on those who had been prepared by lengthy association with Jesus and by sharing his work of mission." [1][source]