Jesus blesses the wine and commands His disciples and the multitude to drink it in remembrance of His blood. He commands them to always remember Him so they may have His Spirit.
8 And it came to pass that when he said these words, he commanded his disciples that they should take of the wine of the cup and drink of it, and that they should also give unto the multitude that they might drink of it.
9 And it came to pass that they did so, and did drink of it and were filled; and they gave unto the multitude, and they did drink, and they were filled.
10 And when the disciples had done this, Jesus said unto them: Blessed are ye for this thing which ye have done, for this is fulfilling my commandments, and this doth witness unto the Father that ye are willing to do that which I have commanded you.
11 And this shall ye always do to those who repent and are baptized in my name; and ye shall do it in remembrance of my blood, which I have shed for you, that ye may witness unto the Father that ye do always remember me. And if ye do always remember me ye shall have my Spirit to be with you.
https://www.churchofjesuschrist.org/study/scriptures/bofm/3-ne/18.8-11
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