Charles Spurgeon 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 it came to pass, when the devil was gone out, the dumb spake; and the people wondered.

When the devil is driven out of men by Christ, they soon begin to pray. The little sentence, Behold, he prayeth, was the indication of a new birth in Saul of Tarsus. The Lord grant that some here, who have been possessed by a dumb spirit, may be graciously led to pray! Remember, dear friend, that God will hear your prayer the first time you call upon him; and there is a text which says, Before they call, I will answer; and while they are yet speaking, I will hear.

And he was casting out a devil, and it was dumb.

So that this poor man could not obey the Saviour's teaching. He could not pray, for he was under the influence of a dumb devil. How many of that sort there are still in the world! They cannot speak with God, they have never learned to pray, for they are possessed by a dumb devil.