1 Jn. 2:1  “My little children, I am writing these things to you that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous”

He speaks and pleads on our behalf.  The word “advocate” is often synonymous with lawyer, though here obviously not with the negative connotation that often goes with  that term(for the following phrase says that Jesus is “the righteous”) but in the sense that He has access to the bar of justice and speaks tirelessly for us there.  Those who go before the Judge need competent representation, especially when there is an “adversary,” (1 Pet. 5:8) and “accuser” (Rev. 12:10) who is a “liar” (Jn. 8:44) and a “deceiver” (Rev. 12:8) standing against them. 

Consider Jesus who is one our side, continually pleading on behalf of those who seek forgiveness of sins.