This fragment is from one of the most important apocryphal apostolic Acts, Acts of John.

60
Now on the first day we arrived at a deserted inn, and when we were at a loss for a bed for John, we saw a droll matter. There was one bedstead lying somewhere there without coverings, whereon we spread the cloaks which we were wearing, and we prayed him to lie down upon it and rest, while the rest of us all slept upon the floor. But he when he lay down was troubled by the bugs, and as they continued to become yet more troublesome to him, when it was now about the middle of the night, in the hearing of us all he said to them: I say unto you, O bugs, behave yourselves, one and all, and leave your abode for this night and remain quiet in one place, and keep your distance from the servants of God. And as we laughed, and went on talking for some time, John addressed himself to sleep; and we, talking low, gave him no disturbance (or, thanks to him we were not disturbed).

But when the day was now dawning I arose first, and with me Verus and Andronicus, and we saw at the door of the house which we had taken a great number of bugs standing, and while we wondered at the great sight of them, and all the brethren were roused up because of them, John continued sleeping. And when he was awaked we declared to him what we had seen. And he sat up on the bed and looked at them and said: Since ye have well behaved yourselves in hearkening to my rebuke, come unto your place. And when he had said this, and risen from the bed, the bugs running from the door hasted to the bed and climbed up by the legs thereof and disappeared into the joints.

What’s great about this story is not that John has the power to expel the bedbugs from the bed, but he has the power to make them return.