What does the Bible say about the public ministry of Jesus?

In Acts 26:26, Paul emphasizes that the ministry of Jesus was not conducted in secret but openly before all people. His teachings, miracles, crucifixion, and resurrection were witnessed by many, reinforcing that the gospel is to be declared publicly. Jesus instructed His disciples to share His message widely, as evidenced in Matthew 10:27 where He said, 'What I tell you in darkness, that speak ye in light.' This public affirmation serves as a cornerstone of the historical gospel message, ensuring it's accessible for all to hear and believe.