Red sky

Did you know the old addage "red sky at night... " derives from Matthew 16v2ff?
 “When it is evening, you say, ‘It will be fair weather, for the sky is red.’ 3 And in the morning, ‘It will be stormy today, for the sky is red and threatening.’ You know how to interpret the appearance of the sky, but you cannot interpret the signs of the times."
Still relevant today!