Matthew 16:2 ASV

¹  And the Pharisees and Sadducees came, and trying him asked him to show them a sign from heaven.

²  But he answered and said unto them, When it is evening, ye say, `It will be' fair weather: for the heaven is red.

³  And in the morning, `It will be' foul weather to-day: for the heaven is red and lowering. Ye know how to discern the face of the heaven; but ye cannot `discern' the signs of the times.

⁴  An evil and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of Jonah. And he left them, and departed.