Matt 17:19-20
19 When the disciples had Jesus off to themselves, they asked, "Why couldn't we throw it out?"
20 "Because you're not yet taking God seriously," said Jesus. "The simple truth is that if you had a mere kernel of faith, a poppy seed, say, you would tell this mountain, 'Move!' and it would move. There is nothing you wouldn't be able to tackle."

FAITH is more than a favorite human word, it is in your heart which like God can't be seen!