George Haydock's Catholic Bible Commentary - Revelation 4:8
Each of them six wings. See the like visions, Ezechiel i. 4; Isaias vi. 2. These signify their swiftness in executing God's just commands. --- Full of eyes: a symbol of knowledge and watchfulness. --- They rested not day and night. There is no night in heaven; but hereby is signified, that they praised God without intermission for all eternity, saying: Thou art worthy, O Lord, our[2] God, &c. (Witham) --- They repeat the word holy three times, probably in honour of the blessed Trinity.... read more
Hawker's Poor Man's Commentary - Revelation 4:4-11
(4) And round about the throne were four and twenty seats: and upon the seats I saw four and twenty elders sitting, clothed in white raiment; and they had on their heads crowns of gold. (5) And out of the throne proceeded lightnings and thunderings and voices: and there were seven lamps of fire burning before the throne, which are the seven Spirits of God. (6) And before the throne there was a sea of glass like unto crystal: and in the midst of the throne, and round about the throne, were four... read more