To make this act of faith, the grace of God and the interior help of the Holy Spirit must precede and assist, moving the heart and turning it to God, opening the eyes of the mind and giving "joy and ease to everyone in assenting to the truth and believing it." (5) To bring about an ever deeper understanding of revelation the same Holy Spirit constantly brings faith to completion by His gifts.
Ili imani hii iweze kutekelezwa, mtu hana budi kutanguliwa na kusaidiwa na neema ya Mungu. Kadhalika hana budi kuwa na msaada wa ndani wa Roho Mtakatifu anayesukuma moyo na kumwelekeza kwa Mungu, na anayefunua macho ya akili na anayewapa “watu wote utamu katika kuukubali na kuuamini ukweli”[5].