There are many verses in the Holy Scriptures that speak of the Judgment Day.
Hebrews 9:27 And as it is appointed unto men once to die, but after this the judgment:
Acts 17:31 For he has set a day when he will judge the world with justice by the man he has appointed. He has given proof of this to everyone by raising him from the dead.
Matthew 12:36 But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.