Two people were driving down a sparse country road late one night when they got a flat tire.
Looking in the trunk, they discovered they didn't have a jack. "Golly, do you think the farmer a few miles back might have a jack?" asked the one. The other responded, "Probably so. Let's go see." So they started walking down the road.
But as they went, questions arose. The one asked, "Do you think he'd even help us this late at night?" The other said, "Do you think the farmer would trust us to bring back his jack?" The first one said, "I bet he'll charge us something to use it." The second one responded, "I bet he'll charge us $5 to use his jack." The first one replied, "Only $5? Heck, I'll bet he makes us pay $20, when he sees how desperate we are."
The doubting and complaining went on until they reached the farmer's house and knocked on the door. When the farmers rose out of bed and opened his upstairs window, the two below shouted, "You can go ahead and keep your stupid jack!"
Sometimes, we can become so full of doubt that we talk ourselves out of asking. Feed your faith and your doubt will starve.
"But let him ask in faith, with no doubting, for he who doubts is like a wave of the sea that is driven and tossed by the wind." --James 1:6