The Pharisees and Sadducees came to test Jesus. So they asked him to show them a miraculous sign from heaven.

              He responded to them, “In the evening you say that the weather will be fine because the sky is red. 

                   And in the morning you say that there will be a storm today because the sky is red and overcast. You can forecast the weather by judging the appearance of the sky, but you cannot interpret the signs of the times.

                                 “Evil and unfaithful people look for a miraculous sign. But the only sign they will be given is that of Jonah.”

Then he left them standing there and went away.