The Pharisees came and began to argue with Jesus, asking him for a sign from heaven, to test him. And he sighed deeply in his spirit and said, ‘Why does this generation ask for a sign? Truly I tell you, no sign will be given to this generation.’ And he left them, and getting into the boat again, he went across to the other side.
(Lectionary, New Revised Standard Version)
Many people who live in the countryside are very good at predicting the weather. Where I lived in Pembrokeshire we lived on a little bit of land that stuck out into the sea, and were always slightly ahead of the local weather forecast. So if the television weather forecaster predicted rain at 10am, it was likely to occur at 9am. But some people can look at say, a still air and a slightly yellow-grey sky, and confidently predict that snow is on the way.
But such natural predictions about the weather are not what the Pharisees wanted. They wanted Jesus to make some gigantic sign such as the river Jordan parting company to allow people to walk along the river bed while the waters piled up on either side, as Moses did (Exodus 14.10-29). Jesus refuses their demand for it comes out of their unbelief. They are blind to the evidence of God's mercy in the healings that Jesus carried out regularly; in God's work in the world that the observant see day by day; and in the miracle of nature as seen in the beauty of a tiny lamb, or the complexity of a flower, or a newborn baby.
We do not need to see a sign, for the evidence of God lies all around us.
Lord God,
sometimes we are blind and deaf
to the evidence of your existence
in our world.
Open our eyes and unstop our ears
to be aware of You
and of Your love and mercy for us.
Stop our craving for a sign,
and give us the confidence to
realise we don't need one.
Amen.
You might like to look up this poem by Alora M. Knight about God's presence in nature: