2 Nephi 26:20 Striking the Rock

I found 2 Nephi 26:20 interesting today.  It says: 

And now, my brethren, I have spoken plainly that ye cannot err. And as the Lord God liveth that brought Israel up out of the land of Egypt, and gave unto Moses power that he should heal the nations after they had been bitten by the poisonous serpents, if they would cast their eyes unto the serpent which he did raise up before them, and also gave him power that he should smite the rock and the water should come forth; yea, behold I say unto you, that as these things are true, and as the Lord God liveth, there is none other name given under heaven save it be this Jesus Christ, of which I have spoken, whereby man can be saved.

I was surprised that Nephi uses two metaphors that don't seem to relate to each other: raising up the serpent on the stick and smiting the rock.  I then realized that they both involve healing. One involves looking to Christ and other. the waters of life flowing from Christ, The Rock.  Nephi then says, that there is none other name given under heaven save it be this Jesus Christ...whereby man can be saved.
I then looked around on the internet and found this:

Christ is the main subject in the Old Testament "concealed". God speaks of Him in types and shadows. At Rephidim (Exodus 17:4) God told Moses to strike the Rock.The Rock is Christ (1st Corinthians 10:4), Moses represents the Law. Jesus was struck by Israel for presuming to violate the Law, for claiming to be God, which He is! When He was struck "crucified", living water (John 4:10) for all humanity who would "believe" was poured out. Moses was told to speak to the Rock at Meribah (Numbers 20:8). As a prerequisite for Jesus to return, to save Israel during the Great Tribulation they must ask Him, (Luke 13:35). So by striking the Rock, Moses messed up God's model or type which would have modeled the 1st and 2nd comings of Christ.
So to counter this mistake by Moses, He was not allowed to take Israel into the Promised Land which is a type of Heaven, Moses represents the Law, only God's Grace gets you in Heaven "the Promised land, so Joshua took them in! Joshua is Hebrew for Jesus! The Law is the 1st five books of the Old Testament, called the Torah by the Jews, The very next book is "Joshua" Found in. 

https://christianity.stackexchange.com/questions/6998/why-was-god-so-upset-with-moses-for-striking-the-rock-the-second-time-in-the-des

The Lord was trying to teach Israel that Moses, or the Law will not save them!  Only Christ and his merits, mercy and grace can save mankind!

I like this response as well:

The section you quote contains the answer: because Moses did not believe. He was told to "tell the rock... to yield its water" but instead he struck the rock twice, apparently believing God's command to be insufficient. He expected God to act in exactly the same way as He had before*, but God apparently wanted to reveal His power to Moses in a new way.
As the leader, Moses was being watched. When Moses did not believe, this could easily lead to lack of belief amongst the Israelites, which had been a problem before.
Finally, God had previously to deal with men not trusting His promise but taking matters into their own hands.

 Believing Christ is the answer.  It always has been the answer. Relying wholly upon His merits who is mighty to save isn't as hard or scary as it sounds.  Surrender to His will and trust that he loves you. You don't have to do it all yourself.  You don't have to take matters into your own hands.  Life becomes peaceful and full of purpose.