No, He wasn't "lying" when He said this, but He was speaking figuratively. Wine and bread were the staples of their diet it those days. What Jesus meant is that when His people got together for fellowship, and ate their bread and drank their wine as they typically did, they should always reflect on the sacrifice of His body and and blood which He was about to offer for the forgiveness of sins. It's not a ritual re-sacrificing of Jesus and literally eating Him and drinking His blood over and over again, but a retrospect of the sacrifice He has already made on our behalf. He is not the God of religious rituals, but of changed hearts. He wants those who have made Him their Lord to reminisce on what was the true cost of our unrighteousness.
The "Mass" is a religious ritual that essentially claims that we can do whatever we want, and keep sacrificing Jesus over and over again to absolve ourselves from any responsibility for our actions. That is NOT the gospel Jesus was preaching. He came to change our hearts from our sinfull ways, and not to give us a license to practice sin with impunity by engaging in religious rituals. If your faith is in these rituals, you clearly don't know Him.
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