In those days Jesus came from Nazareth of Galilee and was baptized by John in the Jordan. And when he came up out of the water, immediately he saw the heavens being torn open and the Spirit descending on him like a dove. And a voice came from heaven “You are my beloved Son; with you I am well pleased.” Mark 1:9-11 (ESV)
Mark 1:9-11 describes the baptism of Jesus in specific fulfillment of prophecy (Isaiah 53:10, Isaiah 64:1, Isaiah 61:l-2, and Isaiah 42:1-4). Each member of the Trinity is present at this baptism. Jesus enters the water, the Father affirms that Jesus is His eternal Son, and the Holy Spirit descends to authenticate and empower Christ. In a similar way each member of the Trinity is intimately, personally, redemptively working for you and your salvation every day.