In 1 Nephi 4, when Nephi and his brothers were working to get the plates, they reached a moment of frustration and disagreement. Nephi's solution was to teach them that when the Lord commands something he makes it possible for them to accomplish that work. To drive his point home he used history that was known, understood, and well loved -- the experiences of Moses.
Here again as he goes to build a ship, one that will carry them to a different continent, he is not receiving the support he needs from his brothers. In his sorrow, anger and frustration, he calls upon the works of Moses to teach his brothers that the power of God can deliver. The power of God can do all things.
In priesthood just this week I was encouraging the brethren of our quorum that their assignments to fulfill their priesthood responsibilities to home teach came as a result of the keys of the priesthood which I hold for our quorum. I promised them that they would have the power and insights to reach and bless their families. I told them that I was uncertain of the scriptural basis for these thoughts but knew that it was true.
One brother taught us that in many places we read about having the power of God, his words struck me as he said that He, God, gives us of his Godliness. It is to help us to prepare to be like him.
As I studied these words today, I was blessed to read from Moses 1:25 as a cross-reference. Here the Lord tells Moses that he will be able to command the elements "as if [he] wert God". As if he were God. That means he has some of His Godliness. And the priesthood, the authority AND the developed power, are that Godliness. Keys represent different portions of the authority of the priesthood. Power is belief, faith, action and experience that come about through the use of the priesthood and allow us to do progressively greater and greater works.