Tradition
St. Cyril of Jerusalem
Catechetical Lectures
Book 23 › Section 20
20. After this ye hear the chanter inviting you with a sacred melody to the communion of the Holy Mysteries, and saying, O taste and see that the Lord is good. Trust not the judgment to your bodily palate no, but to faith unfaltering; for they who taste are bidden to taste, not bread and wine, but the anti-typical Body and Blood of Christ.
Source: Catechetical Lectures (New Advent)