Paul the apostle recounted that Jesus appeared to more than 500 of His followers at one time, the majority of whom were still alive and who could confirm what Paul wrote.
Josh McDowellThe Old Testament records the preparation for the coming of the Messiah. The Gospels record the coming of the Messiah, Jesus Christ our Lord. The book of Acts records the propagation of the gospel (the good news) concerning Jesus Christ. The Epistles (letters) explain the gospel and its implications for our lives. The book of Revelation anticipates and describes the second coming of Jesus Christ and the establishment of His eternal kingdom. From beginning to end, the Bible glorifies Jesus Christ and centers on Him. Its Christ-centeredness is one of its wonderful features.
Josh McDowellHere's the simplest answer: Within weeks, the disciples proclaimed the resurrection of Jesus Christ, that He had been bodily raised from the dead and appeared to them.
Josh McDowell