'Advocate' in the Bible

Even now my witness is in heaven,and my advocate is in the heights!

You must also bear your disgrace, since you have been an advocate for your sisters. For they appear more righteous than you because of your sins, which you committed more abhorrently than they did. So you also, be ashamed and bear your disgrace, since you have made your sisters appear righteous.

My little children, I am writing you these things so that you may not sin. But if anyone does sin, we have an advocate with the Father—Jesus Christ the Righteous One.