"Now behold ye know that this is true; and ye also know that an angel hath spoken unto you; wherefore can ye doubt? Let us go up; the Lord is able to deliver us, even as our fathers, and to destroy Laban, even as the Egyptians."
1 Nephi 4:3
This is from the very beginning of the Book of Mormon where Lehi tells his sons to go back to Jerusalem and obtain the brass plates that God has told them to obtain for their journey. And they've already talked to Laban and offered a lot of gold and silver and other expensive items to Laban in return, and Laban has stolen all of their stuff and tried to kill them. And at this point, Laman and Lemuel are ready to go back to their father. They think that if they keep trying that Laban will succeed in killing them. When reading the story I think it is easy to see both sides. Afraid of being killed, and confident that God will make it happen since he asked them to do it. And in our lives I think that we often vacillate between these viewpoints as well: being afraid and being faithful.
Things don't always work out the way we want them to... maybe someone isn't trying to kill us, but we still wonder why there are so many obstacles in our way and why God isn't stepping in to make things better or easier. Just like Laman and Lemuel doubting even after they had seen an angel, we all have experiences in our lives where we absolutely know that God is there... and we gloss over those just as they did, when we're worried and scared.
Today, let's choose faithfulness over fear. We're all going to have challenges, and things aren't going to come easily. But God is still there, wanting us to learn and to succeed. Instead of doubting, let's remember Nephi, and keep trying to do God's will, even when it seems impossible.