18  Now I ask, is this faith? Behold, I say unto you, Nay; for if a man knoweth a thing he hath no cause to ^abelieve, for he knoweth it.

  12  For if there be no ^afaith among the children of men God can do no miracle among them; wherefore, he showed not himself until after their faith.

  7  Behold, if they will not ^abelieve my words, they would not believe you, my servant Joseph, if it were possible that you should show them all these things which I have committed unto you.