Jesus said, “You are witnesses” (Luke 24:48). Luke made a careful account from eyewitnesses (Luke 1:1-4). Matthew writes about when he started following Jesus (Matthew 8:9). Paul records several resurrection appearances (1 Corinthians 15:3-8). John proclaims to what he has seen and heard (John 19:35, 1 John 1:1-4). Jesus calls us to be his witnesses by the power of the Holy Spirit (Acts 1:8).