The baptism of Jesus Christ by John the Baptist is a significant event in the New Testament, marking the beginning of Jesus' public ministry. This event is recorded in all four Gospels (Matthew, Mark, Luke, and John), with each providing unique details and perspectives.

John the Baptist, a prophetic figure who preached in the wilderness of Judea, called people to repentance and baptized them in the Jordan River as a sign of their desire to turn from sin and prepare for the coming kingdom of God. John's message and actions set the stage for the arrival of Jesus, whom he recognized as the one who would surpass him in importance and whose sandals he felt unworthy to untie.

When Jesus came to John to be baptized, John initially hesitated, recognizing Jesus' sinless nature and superior status. He said,
I have need to be baptized of thee, and comest thou to me? - Matthew 3:14

However, Jesus insisted, stating that His baptism was necessary.
And Jesus answering said unto him, Suffer it to be so now: for thus it becometh us to fulfil all righteousness. Then he suffered him. - Matthew 3:15

This act of obedience and humility on Jesus' part demonstrated his solidarity with humanity and his submission to God's will.
As Jesus was baptized and emerged from the water, the heavens opened, and the Spirit of God descended upon him like a dove. A voice from heaven declared,
This is my beloved Son, in whom I am well pleased. - Matthew 3:17

This divine affirmation marked Jesus as the Son of God and signaled the approval of his mission.

The baptism of Jesus symbolizes several key theological themes, including the Trinity (with the presence of the Father, Son, and Holy Spirit), the inauguration of Jesus' ministry, and the model of baptism for believers. It represents a moment of revelation, showing Jesus as the Messiah and the chosen one of God, who would take away the sins of the world.