John Gill Commentary Luke 11:14

"And he was casting out a demon [that was] dumb. And it came to pass, when the demon was gone out, the dumb man spake; and the multitudes marvelled." — Luke 11:14 (ASV)

And he was casting out a devil At a certain time, either the same that is recorded in (Matthew 9:32) or in (Matthew 12:22) for both of them were attended with the same effect upon the people, and with the same calumny of the Pharisees, mentioned here:

and it was dumb . The Ethiopic version reads, "deaf and dumb"; that is, the devil, which possessed the man, made him both deaf and dumb; if the same as in (Matthew 12:22) he was blind, as well as dumb:

and it came to pass, when the devil was gone out ; of the man possessed by him, by the command of Christ:

the dumb spoke ; as other men did, and as he had done before; the cause being removed, the effect ceased:

and the people wondered ; at the power of Christ, and concluded that he must be the Messiah, the son of David.