Aineo
This is the verse you quoted above in your post.
Matt 26:26-30
26 And while they were eating, Jesus took some bread, and after a blessing, He broke it and gave it to the disciples, and said, "Take, eat; this is My body." 27 And when He had taken a cup and given thanks, He gave it to them, saying, "Drink from it, all of you; 28 for this is My blood of the covenant, which is poured out for many for forgiveness of sins.
It s is a direct command from Jesus to partake for rememberance and forgiveness of our sins. So if you do not partake, how do you repent for your sins or recieve forgiveness.
Also for the record in the King James Bible there are 220 quotes ,verses on commandment keeping , please see my post to you after this.
It this part of the first commandment of christ.?
2John.1
[6] And this is love, that we walk after his commandments. This is the commandment, That, as ye have heard from the beginning, ye should walk in it.