THE GOSPEL ACCORDING TO LUKE - Chapter 1 - Verse 18

Verse 18. Whereby shall I know this? {w} The thing was improbable, and he desired evidence that it would take place. The testimony of an angel, and in such a place, should have been proof enough; but men are slow to believe the testimony of heavenly messengers. As a consequence of not believing, he was struck dumb.

{w} Ge 17:17