Matthew 17:20
"And Jesus said unto them, Because of your unbelief: for verily I say unto you, If ye had faith as a grain of mustard see, ye shall say unto this mountain, Remove hence to younder place; and it shall remove; and nothing shall be impossible unto you."

Matthew 19:26
"And Jesus beheld them and said unto them, With men this is impossible,; but with God all things are possible."

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

Luke 1:37
"For with God nothing shall be impossible"

Luke 18:27
"And he said, The things which are impossible with men are possible with God."