The Gospel for this Sunday (John 1:29-34) has John the Baptist pointing out Jesus to some of his disciples. He says, "Behold, the Lamb of God, who takes away the sin of the world." John goes on to testify that Jesus is the one he saw the Spirit come down upon him and remain upon him. He ends by saying, "Now I have seen and testified that he is the Son of God."
I think what strikes me most today is the realization that Jesus is the Lamb of God who takes away the sin of the world. I am so concerned about our world and the way we are abusing creation. Perhaps I just need to keep asking Jesus to take away the sin of the world that seems to be all around us.