Matthew 12:36
"I tell you that for every careless word that men speak they shall give account on the day of judgment.
Luke 8:13
"Those on the rock are people who, upon hearing, receive the word with joy; but they have no root. For a time indeed they all believe, but in time of temptation they fall away.
Luke 11:24-26
"Whenever a foul spirit is gone out of a man, it roams through waterless places, in search of rest; but when it can find none, it says, 'I will go back to the house which I have left.'
James 3:5
So also the tongue is a small member and makes great boasts. Behold, how great a forest is set on fire by a little spark!
2 Peter 2:8
(for that righteous man, living among them, tormented his righteous soul in seeing and hearing, day after day, their lawless deeds),
Revelation 13:5
And he was permitted to utter loud boasts and blasphemies; and there was given to him authority to continue forty-two months.