'I Go Away' in the Bible

Oh spare me, that I may recover strength, before I go away, and exist no more." For the Chief Musician. A Psalm by David.

You heard how I told you, 'I go away, and I come to you.' If you loved me, you would have rejoiced, because I said 'I am going to my Father;' for the Father is greater than I.

Nevertheless I tell you the truth: It is to your advantage that I go away, for if I don't go away, the Counselor won't come to you. But if I go, I will send him to you.