Wine? How about the miracle of turning water into earth

First Nephi 17:50

Nephi is teaching Laman and Lemuel - and uses this as an example. In the next verse he explains that if the Lord has such great power, why can't he command Nephi to build a ship? Here is echoed one of the great themes of First Nephi - initially stated in 3:7 - the Lord won't command it unless it is possible, and unless he has prepared the way. Therefore, if the Lord commands Nephi to turn the ocean into earth, it is possible, it is the Lord's will, and He has prepared the way. Simply knowing the Lord has commanded it provides us with faith that it can, and should, be done - otherwise the Lord wouldn't command it.