When Jesus is 30 years old, he begins his public ministry. John the baptizer announces that Jesus is the “lamb of God, who takes away the sin of the world” and baptizes him. Jesus then spends 40 days in the wilderness overcoming the devil’s temptations. He chooses 12 ordinary men as his disciples. For 3 years, he travels throughout the land of Israel. All the while, he preaches, urging people to trust in him. At the same time, he performs many miracles, e.g., raising the dead. He performs these miracles not only to help people, but also to demonstrate that he is God’s son and God’s promised Savior. Some of the Jews accept him, but most reject him.