Paraclete
Paraclete is a transliteration of a Greek word that means “one who is called to help” or “one who speaks for another person.” The term could refer to a lawyer. More generally, it describes someone who acts for another person as a mediator (one who helps two sides come together), an intercessor (one who speaks on another’s behalf), or an encourager.
In 1 John 2:1, Jesus Christ is called a paraclete because he represents believers before God. This role is similar to his work as High Priest, who speaks for his people before God (compare Hebrew 7:25–28).
John’s Gospel contains most uses of the term “paraclete.” In each case, the term refers to the work of the Holy Spirit (John 14:16, 26; 15:26; 16:13). Jesus says that after he leaves, the Father will send the Holy Spirit.
The Paraclete is also called the “Spirit of truth.” He will guide the disciples into all truth and help them remember Jesus’s teaching correctly. After Jesus departs, the Holy Spirit will remain with them as their special helper.
See also Spirit of God.