“Truly I tell you, 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.” Matthew 17:20b (NIV)
When Jesus was in his public ministry on earth he took advantage of things that happened each day to teach his disciples. This verse is from one of those times. The purpose of this teaching is not to encourage us to move mountains around. The real lesson which Jesus was teaching was about the nature of the faith which produces results. Jesus spoke of faith being as small as a mustard seed. Ever so small, the seed would produce great results. Jesus was saying that even if their faith was as small as a mustard seed, it would produce great results because the faith would be there. But the results of even such faith come from God and He is great. It is of course the greatness of God that brings results providing the faith is in our hearts.