Albert Barnes Commentary John 10:41

"And many came unto him; and they said, John indeed did no sign: but all things whatsoever John spake of this man were true." — John 10:41 (ASV)

No miracle. He did not confirm his mission by working miracles, but he showed that he was a prophet by foretelling the character and success of Jesus. Either miracle or prophecy is conclusive proof of a divine mission, for no man can foretell a future event, or work a miracle, except by the special aid of God.

It should be noted that the people of that place were properly prepared by the ministry of John for the preaching of Jesus. The persecution by the Jews was the occasion for His going there, and thus the wrath of man was made to praise Him.

It has often happened that the opposition of the wicked has resulted in the increased success of the cause they persecuted. God takes the wise in their own craftiness, and brings glory to Himself and salvation to sinners out of the pride, and passions, and rage of wicked men.