THE SANTUS: HOLY, HOLY, HOLY LORD: This prayer helps us to see with the eyes of the angels what is really happening in the Eucharistic Liturgy. The opening words: Holy, Holy, Holy Lord… “Take us spiritually up to heaven. They come from Isaiah 6:3, a passage in which the prophet receives a vision of the heavenly King in the divine throne room with his majesty magnificently displayed and his angelic court adoring him.
Isaiah reports that he saw “the Lord sitting upon a throne, high and lifted up and his train filled the temple. (Is6:1). Above the Lord, Isaiah saw the six winged angelic seraphim, a word which means “burning ones.” This unique title suggests that these angels are so close to God that they reflect his radiance. Yet even these angelic beings stand in utter awe before the divine presence. They covered their faces, daring not to behold the full glory of God (Is 6:2), and called to one another in an ecstatic hymn of praise. “Holy…The seraphim therefore acclaim the Lord as the all holy One, the one God above all other gods. And by singing “the whole earth is full of your glory, “they praise God for his splendor, which is displayed .This angelic hymn of praise has dramatic effects. When they sing, the foundations of the Temple shake and the room is filled with smoke.