The Catechism in Questions & Answers

200. What does it mean to say that “the Holy Spirit is a Comforter and Helper”?

Jesus Christ is the Comforter, Helper, and Advocate for His own. In the farewell discourses before His arrest and crucifixion, He promised to send the Holy Spirit as a further Comforter and Helper: “And I will pray the Father, and He will give you another Helper, that He may abide with you forever” (John 14: 16). The Holy Spirit accompanies the believers. He stands by them in all situations of life.