Doubt

Jesus immediately reached out his hand and took hold of him, saying to him, “O you of little faith, why did you doubt?” ^{Matthew 14:31 ESV}

But let him ask in faith, with no doubting, for the one who doubts is like a wave of the sea that is driven and tossed by the wind. ^{James 1:6 ESV}

Trust in the Lord with all your heart, and do not lean on your own understanding. In all your ways acknowledge him, and he will make straight your paths. Be not wise in your own eyes; fear the Lord, and turn away from evil. It will be healing to your flesh and refreshment to your bones. ^{Proverbs 3:5-8 ESV}

And Jesus answered them, “Truly, I say to you, if you have faith and do not doubt, you will not only do what has been done to the fig tree, but even if you say to this mountain, ‘Be taken up and thrown into the sea,’ it will happen. ^{Matthew 21:21}

Truly, I say to you, whoever says to this mountain, ‘Be taken up and thrown into the sea,’ and does not doubt in his heart, but believes that what he says will come to pass, it will be done for him. ^{Mark 11:23 ESV}