{Peter said} (Eipen de ho Petros). This whole paragraph
from verse  22-40  had been addressed directly to the disciples.
Hence it is not surprising to find Peter putting in a question.
This incident confirms also the impression that Luke is giving
actual historical data in the environment of these discourses. He
is certain that the Twelve are meant, but he desires to know if
others are included, for he had spoken to the multitude in verses
 13-21 . Recall  Mr 13:37 . This interruption is somewhat like
that on the Mount of Transfiguration ( Lu 9:33 ) and is
characteristic of Peter. Was it the magnificent promise in verse
 37  that stirred Peter's impulsiveness? It is certainly more
than a literary device of Luke. Peter's question draws out a
parabolic reply by Jesus ( 42-48 ).