Zacharias said, Whereby shall I know this? — In how different a spirit did he blessed virgin say, How shall this be? Zacharias disbelieved the fact: Mary had no doubt of the thing; but only inquired concerning the manner of it.
Related Commentaries of Luke 1:18
Luke 1:18
18 And Zacharias said unto the angel, Whereby shall I know this? for I am an old man, and my wife well stricken in years.