Sara,
Wow, this is an amazing question, as Almighty God has given us such a rich treasure in the content of his revelation in the New Testament books. As a convert to Catholicism at about the age of 20, I asked St. Paul to be my male patron (and asked St. Joan of Arc to be my female patron), since his epistles can be “hard” (such as granite, being a “hard” stone. Granite is “hard”, but not difficult or intending to be hostile). And I have favorite Parables of Jesus Christ in different Gospels. Hebrews 11, the “Chapter of Fatih”, which I read the other day (not for the first time in my life), brought me to tears of joy for the unmerited grace God has so richly bestowed on me (“us”) as seekers the will of our Creator. In the 24 Books, I can’t at this time place my finger on only one book. I want to see what other say, as this might inspire me to do a further study of another of my fellow laborer’s in Christ’s verdant fields, white unto harvest, book of consolation and inspiration. Thank you for asking this question! Let us love and serve one another, in the same spirit that our Lord, the Holy Virgin Mother, and all the Apostles and Saints, do throughout all ages. Peace be with you.