John 14:10, 20

Do you not believe that I am in the Father, and the Father is in Me? The words I say to you I do not say on My own initiative or authority, but the Father, abiding continually in Me, does His works [His attesting miracles and acts of power].

On that day [when that time comes] you will know for yourselves that I am in My Father, and you are in Me, and I am in you.