The answer is: New Testament

Only appears twice in KJV O.T.

Isn't it fascinating to dive into how often the word "faith" pops up in the Bible? While there are only a couple of mentions in the Old Testament, our exploration really gears up in the New Testament! Here, faith isn't just mentioned — it's this central, pulse-racing theme throughout the texts. It's like the New Testament is throwing us onto a roller coaster of belief and conviction, teaching readers about the significance of love, trust, and spirituality.

To add a sprinkle of fun trivia, one of the biggest advocates for the concept of faith in the New Testament is the Apostle Paul. With his musical prose, he often links faith to grace, creating the catchy line, "For by grace you have been saved through faith" (Ephesians 2:8). That's melody pure and simple in the realm of divine relationship!

Interestingly, the New Testament teems with stories emphasizing faith, from Peter walking on water to the JWT (Jesus Walks To Touch) moments with individuals seeking healing. And it's not just all spiritual; many of those miracles often highlight how personal and communal faith can shift realities.

Moreover, Hebrews 11, sometimes lovingly dubbed the "Hall of Faith," shines a spotlight on Old Testament figures credited with faith long before we alienated its word. This beautiful and enduring connection shows how people throughout Biblical history grappled with trust in the divine. How cool is it that the concept of faith is a thread winding its way from base-to-peak, weaving in connections through centuries and personal callings?