A.T. Robertson Commentary Matthew 26:58

"But Peter followed him afar off, unto the court of the high priest, and entered in, and sat with the officers, to see the end." — Matthew 26:58 (ASV)

To see the end (ιδειν το τελος). Peter rallied from the panic and followed afar off (μακροθεν), "more courageous than the rest and yet not courageous enough" (Bruce). John the Beloved Disciple went on into the room where Jesus was. The rest remained outside, but Peter "sat with the officers" to see and hear and hoping to escape notice.