John 16:5-7

and now I go away to Him who sent me, and none of you doth ask me, Whither dost thou go?

but because these things I have said to you, the sorrow hath filled your heart.

`But I tell you the truth; it is better for you that I go away, for if I may not go away, the Comforter will not come unto you, and if I go on, I will send Him unto you;