John 16:10

...concerning righteousness, because I go to the Father, and you will see me no longer... (John 16:10)

Three points:

1. Righteousness

Righteousness is having gone before a judge then declared innocent. The work of the Holy Spirit is to confront people to let them know what is right and wrong.

2. I go

The Lord Jesus is not here on earth; he is in heaven at the right hand of God the Father. He had to leave earth according to the plan of God. The right hand side of an authority is one of extreme importance and power.

3. See me no longer

This refers to his earthly time, not to his return in the future. His ascension was when he left. Now...
1. ...he helps protect his people: For because he himself has suffered when tempted, he is able to help those who are being tempted. (Hebrews 2:18)

2. ...he prays for his people: Consequently, he is able to save to the uttermost those who draw near to God through him, since he always lives to make intercession for them.
(Hebrews 7:25)

And many other things.