"And it came to pass that Ether did prophesy great and marvelous things unto the people, which they did not believe, because they saw them not.
And now, I, Moroni, would speak somewhat concerning these things; I would show unto the world that faith is things which are hoped for and not seen; wherefore, dispute not because ye see not, for ye receive no witness until after the trial of your faith."
It's hard sometimes to trust God. We've grown up in this world that generally teaches us that if you can't prove it, it isn't true, and which ignores so much proof that is all around us. It's easy to blow off things that we can't see or touch. I think that this is one of the reasons that we have the scriptures. With them, we can read and remember how it was for other people throughout history, how they relied on God, and how they used faith to accomplish great things. With all of the good examples in the scriptures, we feel less isolated and can know that we are in very good company as we strive to be people of faith.
There is a lot of power in faith. ... after these verses, the chapter goes into a lot of things that were accomplished through faith. Amazingly cool things, like the brother of Jared moving mount Zerin. God performs miracles in our lives because we have faith in him (Ether 12:12). We have the ability to change our lives and our perspectives even at the worst moments of life, if we have faith. It is hard sometimes. Hard to maintain faith in something that is taking an awfully long time to happen. Hard to have faith that changing our lives for God is going to make things better when it doesn't feel like it right away. Hard to believe that we can crawl out of the hole again after falling/jumping into it for the nth time. Today, let's not dispute God's word because we can't *see* it. Let's believe him anyway... and let that believe move us to action. Let's have faith that we can be better people, that God can do what he say he will, and that the happy ending that has always been there will come eventually. Let us be confident in the Lord as we live through the chapters leading up to it. :)