Christ is bathed in light; let us also be bathed in light. Christ is baptized; let us also go down with him, and rise with him.
John is baptizing when Jesus draws near. Perhaps he comes to sanctify his baptizer; certainly he comes to bury sinful humanity in the waters. He comes to sanctify the Jordan for our sake and in readiness for us; he who is spirit and flesh comes to a new creation through the Spirit and water.