Titus 3:10, Rom 16:17-18, I Tim 6:3-6:6, Matt 10:11-15 and I Cor 5:5.
Please feel free to act scripturally and follow the above scriptures....
We also remember that the Jews ate the Passover Lamb.
I'm not exactly sure what you're referring to, but I will assert again the non-Scriptural basis of the RCC eucharist. It has more in common with sorcery than with the Bible.
Think about it, a select group of hand-picked priests control a key religious symbol by performing an incantation complete with a magic spell. The object of this incantation magically, but not apparently or even measurably, changes into another substance that holds sway over the eternal souls of all people.
This is not an ordinance of God, but a control method of men.