"He replied, "Because you have so little faith. I tell you the truth, if you have faith as small as a mustard seed, you can say to this mountain, 'Move from here to there' and it will move. Nothing will be impossible for you.""
Two men came to a frozen lake and although seeing the "thin ice" sign, walked out onto the lake anyway. The first man said, "Let us walk boldly for this ice will not break!" while the second said with a quiver in his voice as he reluctantly stepped forth, "I don't know if this ice is going to hold." Which one had faith?
They both did.
In the end, both of them walked out onto that lake, one rather blindly and the other cautiously. They didn't fall in because ultimately it was not their faith that supported them but the object of that faith, the ice. We are not asked to believe blindly but to come and see for ourselves. Had the ice given way, the first man would have proven to be foolish, not that he isn't already a fool. It is better to test and discern God's will than to rush in blindly where angels fear to tread.
So I tell you the truth, it does not matter how much faith you have (even as small as a mustard seed), but who you have faith in. Nothing will be impossible for us because we believe in a God for whom nothing is impossible.