Jesus said v15 "If you love me, you will obey what I command.
16 And I will ask the Father, and he will give you another Counselor/Helper/Advocate to be with you forever--
17 the Spirit of truth."
John 14.

8 When he (the Holy Spirit) comes,
he will convict the world of sin and righteousness and judgment:
9 in regard to sin, because men do not believe in me;
10 in regard to righteousness, because I am going to the Father, where you can see me no longer;
11 and in regard to judgment, because the prince of this world now stands condemned.
John 16