Your faith: Is it working for you? “Truly, I say to you, whoever says to this mountain, ‘Be taken up and thrown into the sea,’ and does not doubt in his heart, but believes that what he says will come to pass, it will be done for him.” (Mark 11:23 ESV) This matter-of-fact statement by Jesus is certainly a challenging one. What is His contention? Faith is your Servant. When you have faith like a grain of mustard seed, it will carry out its duty, every time.