Matthew 12:36

33 `Either make the tree good, and its fruit good, or make the tree bad, and its fruit bad, for from the fruit is the tree known.

34 `Brood of vipers! how are ye able to speak good things -- being evil? for out of the abundance of the heart doth the mouth speak.

35 The good man out of the good treasure of the heart doth put forth the good things, and the evil man out of the evil treasure doth put forth evil things.

36 `And I say to you, that every idle word that men may speak, they shall give for it a reckoning in a day of judgment;

37 for from thy words thou shalt be declared righteous, and from thy words thou shalt be declared unrighteous.`

38 Then answered certain of the scribes and Pharisees, saying, `Teacher, we will to see a sign from thee.`

39 And he answering said to them, `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;