No matter what sport Tim Tebow is playing, he says that his Christian faith remains front and center. Born a son of missionaries, Tebow has been a devout Christian for all his life. Tebow was noticed for his football skills in college and was quickly ushered into the NFL. There, he was open about his faith and routinely wrote "John 3:16" on his helmet, shoes and face during games. Though he faced relentless criticism, he managed to stay focused on his faith. His fans quickly began celebrating Tebow's strong stance. Tebow wrote a book about his struggles in professional sports and shared how his faith helped him through those difficult times.