Mark 11:24

11:24 For this reason I tell you, whatever you pray and ask for, believe that you have received it, and it will be yours.

Mark 11:31

11:31 They discussed with one another, saying, “If we say, ‘From heaven,’ he will say, ‘Then why did you not believe him?’

Mark 16:17

16:17 These signs will accompany those who believe: In my name they will drive out demons; they will speak in new languages;