Matthew 16:4

1 And the Pharisees and Sadducees having come, tempting, did question him, to shew to them a sign from the heaven,

2 and he answering said to them, `Evening having come, ye say, Fair weather, for the heaven is red,

3 and at morning, Foul weather to-day, for the heaven is red -- gloomy; hypocrites, the face of the heavens indeed ye do know to discern, but the signs of the times ye are not able!

4 `A generation evil and adulterous doth seek a sign, and a sign shall not be given to it, except the sign of Jonah the prophet;` and having left them he went away.

5 And his disciples having come to the other side, forgot to take loaves,

6 and Jesus said to them, `Beware, and take heed of the leaven of the Pharisees and Sadducees;`

7 and they were reasoning in themselves, saying, `Because we took no loaves.`