In spite of the fact that Jesus was a righteous man (1 Pet. 3:18), he died for the sins of others (1 Pet. 3:18; Rom. 4:25; 1 Tim. 2:6). He was killed (Acts 3:13–15; 13:27–29; 1 Cor. 15:3; Phil. 2:8) by crucifixion (Acts 2:23; 2:36; 4:10; 5:30; 10:39), dying in the city of Jerusalem (Acts 13:27; cf. 10:39), at the hands of wicked men (Acts 2:23). Afterwards, he was buried (Acts 13:29; 1 Cor. 15:4). These events caused the disciples to doubt and despair.

On the third day after the crucifixion (Acts 10:40), the tomb was empty (1 Cor. 15:4, implied) and Jesus was raised from the dead (Acts 2:24, 31–32; 3:15, 26; 4:10; 5:30; 10:40; 13:30–37; 2 Tim. 2:8). Jesus appeared to numerous eyewitnesses (Luke 24:34; Acts 13:31; 1 Cor. 15:4ff.), even eating with them (Acts 10:40–41). Two of these persons—namely James (1 Cor. 15:7) and Paul (1 Cor. 15:8–9)—were formerly skeptics before they met the risen Jesus. The disciples were witnesses of the appearances (Acts 2:32; 3:15; 5:32; 10:39, 41; 13:31), which were reported at a very early date (Acts 10:40–41; 13:31; 1 Cor. 15:4–8). After his resurrection, Jesus ascended to heaven where he was glorified and exalted (Acts 2:33; 3:21; 5:31; 1 Tim. 3:16; Phil. 2:6f.).

The disciples were transformed by these experiences (cf. 1 Tim. 3:16) and made the gospel the very center of their early preaching (1 Cor. 15:1–4). In fact, it was the risen Jesus who taught that salvation was to be preached in his name (Acts 2:38–39; 3:19–23; 4:11–12; 5:32; 10:42–43; 13:26, 38–41). The resurrection was the chief validation of Jesus’ person and message (Acts 2:22–24, 36; 3:13–15; 10:42; 13:32– 33; Rom. 1:3–4; 10:9–10). The apostolic preaching initially centered in Jerusalem, the same place where Jesus had been killed. Here the church was born and grew, with Sunday as the chief day of worship.