Mark 11:22-24

11:22 Jesus said to them, “Have faith in God. 11:23 I tell you the truth, if someone says to this mountain, ‘Be lifted up and thrown into the sea,’ and does not doubt in his heart but believes that what he says will happen, it will be done for him. 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.

John 16:24

16:24 Until now you have not asked for anything in my name. Ask and you will receive it, so that your joy may be complete.