How much faith do you need? I doubt that a month goes by where I don't hear some Christian saying things like "I need more faith" or "I wish I had a stronger faith," or "my faith needs to be lifted." That is foolish talk. The quantity of faith that we have is not what is important, it is the quality of our faith. Let me explain.
In Luke 17:1-6 Jesus had just finished explaining to the disciples the wickedness of those who lead others into sin. He then tells the disciples to rebuke a person who sins, and if that man repents, he is to be forgiven. In fact, they were instructed to forgive a sinner seven times in one day if he repented. I think the disciples understood how difficult of a task this would be because they responded by saying, "Increase our faith!"
And then Jesus gave them a stunning answer, "If you have faith as small as a mustard seed, you can say to this mulberry tree, 'Be uprooted and planted in the sea,' and it will obey you."
They only needed the faith of a mustard seed! Not faith the size of a mountain or a tree, or the ocean; but a tiny little seed. The disciples, like us today, still keep thinking that in order to do what God calls us to do, it will take more faith than we currently possess.
But it only takes a little faith! Why is this? Because the power you have in Christ is not something you can muster up inside of you all by yourself. It is the Lord God who works in you and through you. Your faith is only the connector between your heart and God. It is God that does the work. Do you think that by having a truckload of faith you are now going to be used mightily by God?