'Doubt' in the Bible

At once Jesus reached out his hand, caught him, and asked him, "You who have so little faith, why did you doubt?"

Jesus answered them, "I tell all of you with certainty, if you have faith and do not doubt, not only will you be able to do what has been done to the fig tree, but you will also say to this mountain, "Be removed and thrown into the sea,' and it will happen.

I tell all of you with certainty, if anyone says to this mountain, "Be lifted up and thrown into the sea,' if he doesn't doubt in his heart but believes that what he says will happen, it will be done for him.

"Therefore, let all the people of Israel understand beyond a doubt that God made this Jesus, whom you crucified, both Lord and Messiah!"

nor did he doubt God's promise out of a lack of faith. Instead, his faith became stronger and he gave glory to God,

Therefore we regard the message of the prophets as confirmed beyond doubt, and you will do well to pay attention to it, as to a lamp that is shining in a gloomy place, until the day dawns and the morning star rises in your hearts.