This is an idiom that means the disciples are very sad. AT: "you are now very sad" (See: [[rc://en/ta/man/translate/figs-idiom]])
# if I do not go away, the Comforter will not come to you
You can translate this in a positive form. AT: "the Comforter will come to you only if I go away" (See: [[rc://en/ta/man/translate/figs-doublenegatives]])