It was he that spoke the false prophecy to the King.

You've caused nothing but trouble with your scare tactics and false prophecies!

It is that statement that has turned out to be false prophecy.

She was pointing out the danger of false prophecy because of forks that had been taken in the past.

The penalty for false prophecy, is capital punishment (per Deuteronomy 18:20).

Have you ever known me to speak a false prophecy, or to jest in such matters?

And give me no more of your false prophecies.

If he does that, then they become false prophecy and those branches with word of him will never come to pass.

And if not, they have enough experience with false prophecies to take suitable action.

Fiachu had a false prophecy that he would win this battle and desired revenge.