What Jesus said about mountain moving faith

And Jesus looking upon them saith, With men it is impossible, but not with God: for with God all things are possible.   Mark 10:27

And Jesus answering saith unto them, Have faith in God. (literal Greek, have the faith of God). For verily I say unto you, That whosoever shall say unto this mountain, Be thou removed, and be thou cast into the sea; and shall not doubt in his heart, but shall believe that those things which he saith shall come to pass; he shall have whatsoever he saith. Therefore I say unto you, What things soever ye desire, when ye pray, believe that ye receive them, and ye shall have them. And when ye stand praying, forgive, if ye have ought against any: that your Father also which is in heaven may forgive you your trespasses.  
Mark 11:22-25

Jesus saith unto him, Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed. John 20:29

Other faith scriptures

Now faith is the substance of things hoped for, the evidence of things not seen.   Hebrews 11:1

NOW FAITH is the assurance (the confirmation, the title deed) of the things (we) hope for, being the proof of things (we) do not see and the conviction of their reality (faith perceiving as real fact what is not revealed to the senses). Hebrews 11:1 AMP

But without faith it is impossible to please Him: for he that cometh to God must believe that he is, and that he is a rewarder of them that diligently seek him.   Hebrews 11:6

So faith comes by hearing what is told, and what is heard comes by the preaching of the message that came from the lips of Christ the Messiah Himself.  
Romans 10:17 AMP

Looking unto Jesus the author and finisher of our faith; who for the joy set before him endured the cross, despising the shame, and is set down at the right hand of the throne of God.   Hebrews 12:2

Examples

A Roman Centurion

The centurion answered and said, Lord, I am not worthy that thou shouldest come under my roof: but speak the word only, and my servant shall be healed...  When Jesus heard it, he marvelled, and said to them that followed, Verily I say unto you, I have not found so great faith, no, not in Israel... And Jesus said unto the centurion, Go thy way; and as thou hast believed, so be it done unto thee. And his servant was healed in the selfsame hour.   Matthew 8:8&10&13

Woman with an issue of blood

And, behold, a woman, which was diseased with an issue of blood twelve years, came behind him, and touched the hem of his garment:...But Jesus turned him about, and when he saw her, he said, Daughter, be of good comfort; thy faith hath made thee whole. And the woman was made whole from that hour. Matthew 9:20 &22

Blind Bartemeus

And they came to Jericho: and as he went out of Jericho with his disciples and a great number of people, blind Bartimaeus, the son of Timaeus, sat by the highway side begging. And when he heard that it was Jesus of Nazareth, he began to cry out, and say, Jesus, thou son of David, have mercy on me. And many charged him that he should hold his peace: but he cried the more a great deal, Thou son of David, have mercy on me. And Jesus stood still, and commanded him to be called. And they call the blind man, saying unto him, Be of good comfort, rise; he calleth thee. And he, casting away his garment, rose, and came to Jesus. And Jesus answered and said unto him, What wilt thou that I should do unto thee? The blind man said unto him, Lord, that I might receive my sight. And Jesus said unto him, Go thy way; thy faith hath made thee whole. And immediately he received his sight, and followed Jesus in the way. Mark 10:46-52

Summary

Jesus said with God all things are possible, by speaking God's words we can operate in the faith of God. This is important because without faith it is impossible to do the things that please God. The faith of God is available to anyone, it comes from hearing the words that Jesus said.

Faith is put into action by believing in your heart and speaking it out through your mouth. Through faith you receive all of Gods blessings.