True, so are we all. But they weren't flawed in their words from God.
Deuteronomy 18:20 - But a prophet who presumes to speak in my name anything I have not commanded, or a prophet who speaks in the name of other gods, is to be put to death.
Jeremiah 23:16 - This is what the Lord Almighty says: "Do not listen to what the prophets are prophesying to you; they fill you with false hopes. They speak visions from their own minds, not from the mouth of the Lord."
Even people like Moses and King David were flawed. Put that in perspective.
True, so are we all. But they weren't flawed in their words from God.