John 14:10-21 New International Version - UK (NIVUK)
10 Don’t you believe that I am in the Father, and that the Father is in me? The words I say to you I do not speak on my own authority. Rather, it is the Father, living in me, who is doing his work. 11 Believe me when I say that I am in the Father and the Father is in me; or at least believe on the evidence of the works themselves. 12 Very truly I tell you, whoever believes in me will do the works I have been doing, and they will do even greater things than these, because I am going to the Father. 13 And I will do whatever you ask in my name, so that the Father may be glorified in the Son. 14 You may ask me for anything in my name, and I will do it.
Jesus promises the Holy Spirit
15 ‘If you love me, keep my commands. 16 And I will ask the Father, and he will give you another advocate to help you and be with you for ever – 17 the Spirit of truth. The world cannot accept him, because it neither sees him nor knows him. But you know him, for he lives with you and will be[a] in you. 18 I will not leave you as orphans; I will come to you. 19 Before long, the world will not see me any more, but you will see me. Because I live, you also will live. 20 On that day you will realise that I am in my Father, and you are in me, and I am in you. 21 Whoever has my commands and keeps them is the one who loves me. The one who loves me will be loved by my Father, and I too will love them and show myself to them.’