Alma 21:7

7 Now Aaron said unto him: Believest thou that the Son of God shall come to redeem mankind from their sins?

I'm noticing that great and inspired missionaries (as XX as God Himself) often begins teaching by asking questions. Also, if it is different to believe in Jesus Christ today (for some people,) who already came, and people saw Him, and witnessed His miracles and resurrection and recorded it all, how much more different was it to have faith in Him before He was even born? I often wonder that.