What event marks the beginning of Jesus' public ministry?

The Baptism of Jesus marks the beginning of His public ministry because it is during this event that He is not only officially recognized by John the Baptist but also commissioned by God for His mission. This moment is significant as it represents the transition from His private life to His public role as the Messiah. During the baptism, the Holy Spirit descends upon Jesus, and a voice from heaven declares Him as God's beloved Son. This divine affirmation serves as a pivotal moment that sets the stage for the subsequent teachings, miracles, and acts of service that define His ministry.

Other events, such as the birth of Jesus, are important for understanding His origins, while the temptation illustrates His preparation and commitment to His divine mission. The Sermon on the Mount, while a crucial teaching moment, occurs later during His ministry and does not signal its commencement. Thus, the Baptism is the clear catalyst that inaugurates His work among the people.