Matthew 12:36 in the King James Version
But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.
Context
35 The good man out of his good treasure brings out good things, and the evil man out of his evil treasure brings out evil things.
36 I tell you that every idle word that men speak, they will give account of it in the day of judgment.
37 For by your words you will be justified, and by your words you will be condemned.”