Matthew 16:2
But He replied, “When evening comes, you say, ‘The weather will be fair, for the sky is red,’
What it says
Jesus points to their own weather reading and shows that they already interpret the sky by its signs.
What it is doing
This answer begins his contrast between ordinary discernment and spiritual blindness.
In context
1Then the Pharisees and Sadducees came and tested Jesus by asking Him to show them a sign from heaven. 2But He replied, “When evening comes, you say, ‘The weather will be fair, for the sky is red,’ 3and in the morning, ‘Today it will be stormy, for the sky is red and overcast.’ You know how to interpret the appearance of the sky, but not the signs of the times. 4A wicked and adulterous generation demands a sign, but none will be given it except the sign of Jonah.” Then He left them and went away.