Verses 7 to 11 of John 14. 

If you had really known me, you would know who my Father is. From now on, you do know him and have seen him!” Philip said, “Lord, show us the Father, and we will be satisfied.” Jesus replied, “Have I been with you all this time, Philip, and yet you still don’t know who I am? Anyone who has seen me has seen the Father! So why are you asking me to show him to you? Don’t you believe that I am in the Father and the Father is in me? The words I speak are not my own, but my Father who lives in me does his work through me. Just believe that I am in the Father and the Father is in me. Or at least believe because of the work you have seen me do.