Matthew 12:34

32 And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come.

33 Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit.

O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.

35 A good man out of the good treasure of the heart bringeth forth good things: and an evil man out of the evil treasure bringeth forth evil things.

36 But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
You brood of vipers, how can you who are evil say anything good? For out of the overflow of the heart, the mouth speaks.
KJV
O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.
WEB
You offspring of vipers, how can you, being evil, speak good things? For out of the abundance of the heart, the mouth speaks.
ASV
Ye offspring of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.
DARBY
Offspring of vipers! how can ye speak good things, being wicked? For of the abundance of the heart the mouth speaks.
BLB
Offspring of vipers, how are you⁺ able to speak good things, being evil? For out of the abundance of the heart, the mouth speaks.
ÅB
«Orme-yngel! Hvordan kan dere si gode ting, dere som er onde? For det hjertet flyter over av, sier munnen.
OTB
Ormeyngel, hvordan kan dere, som er onde, si noe godt? For munnen taler det hjertet er fullt av.
B1930
Orme-yngel! hvorledes kan I tale godt, I som er onde? for hvad hjertet flyter over av, det taler munnen.

Study notes (Tyndale)

Original text and word study

Cross references

  • Luke 6:45

    A good man out of the good treasure of his heart bringeth forth that which is good; and an evil man out of the evil treasure of his heart bringeth forth that which is evil: for of the abundance of the heart his mouth speaketh.

    Read in context
  • Matthew 15:18

    But those things which proceed out of the mouth come forth from the heart; and they defile the man.

    Read in context
  • Ephesians 4:29

    Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.

    Read in context
  • 1 Samuel 24:13

    As saith the proverb of the ancients, Wickedness proceedeth from the wicked: but mine hand shall not be upon thee.

    Read in context
  • James 3:5–8

    Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth!

    Read in context
  • Psalms 140:2–3

    Which imagine mischiefs in their heart; continually are they gathered together for war.

    Read in context
  • Matthew 12:35

    A good man out of the good treasure of the heart bringeth forth good things: and an evil man out of the evil treasure bringeth forth evil things.

    Read in context
  • Isaiah 32:6

    For the vile person will speak villany, and his heart will work iniquity, to practise hypocrisy, and to utter error against the LORD, to make empty the soul of the hungry, and he will cause the drink of the thirsty to fail.

    Read in context