Which Should Take Away the Sins of the World

2 Nephi 13:1 says,

"Wherefore, I would that ye should remember that I have spoken unto you concerning that prophet which the Lord shewed unto me that should baptize the Lamb of God, which should take away the sin of the world."

If you go through and do a word usage search of "who" and "which" in the book of Mormon, they are generally used correctly (even though the first "which" in this passage seems to have been used incorrectly... *face palm*). I think the same is true here.

It's true that the Lamb of God took away the sins of the world (Alma 5:4). I think, however, that Nephi might be speaking with a little more precision than Alma was speaking with. He's speaking about that thing/event/ordinance WHICH should take away the sins of the world. I think if you want to speak very precisely, you would say the Lord took upon himself the sins of the world (3 Nephi 5:4) and that the baptism of the Lamb took away the sins.

The idea offers more of an explanation of why Christ, a perfect being, had to be baptized to fulfill all righteousness. Nephi explains that it was to show us the right way, and to show the Lord's humility to the Father by keeping His commandments (2 Nephi 13:2). Those are obviously true and valid explanations. It appears there may be a practical application as well.

We know that the order in which ordinances are received doesn't always matter. Joseph Smith stood in the presence of God and angels and was forgiven of his sins years before he was baptized. So it doesn't necessarily matter that the Lord took our sins upon himself three years after his baptism. It still had the effect. 

I could be wrong about this, but it tastes good. There's at least something to this thought.