John Chrysostom — as excerpted in the Catena Aurea on Matthew 12:36-37

“See that this sentence is not a burdensome one. The Judge will pass sentence not according to what any other has said concerning you, but according to what you have yourself spoken. They that are accused then have no need to fear, but they that accuse; for those are not charged of those evil things that have been spoken of them, but these of those evil things that they have spoken.”