Charles Spurgeon Commentary Matthew 18:29

"So his fellow-servant fell down and besought him, saying, Have patience with me, and I will pay thee." — Matthew 18:29 (ASV)

It ought to have startled the tyrant when he heard his own prayer addressed to himself. It was word for word what he had said and the suppliant’s posture was just what his own had been when before his lord, he fell down at his feet. That poor promise too, I will pay thee all, was repeated in his ear and with much more likelihood of its being fulfilled.

Surely he would give the same answer as his lord had granted him! Not he. He was servile and of an evil spirit. His lord was a king and acted royally.