John 14:12-14 -
12I tell you the truth, anyone who has faith in me will do what I have been doing. He will do even greater things than these, because I am going to the Father. 13And I will do whatever you ask in my name, so that the Son may bring glory to the Father. 14You may ask me for anything in my name, and I will do it.
Needed to understand these words: a grasp of the perichoretic trinitarian mutual-indwelling Godhead.