What does Revelation 4:8 mean?
John describes each of the four living creatures as having six wings. His description is reminiscent of Isaiah' description of the seraphim he saw above God's throne (Isaiah 6:2–3). Probably the living creatures, like the seraphim, use two wings to cover the face, two to cover the feet, and two to fly. The living creatures possess multiple eyes, emphasizing their guard duty. Also, they praise God day and night. They sing about God's holiness.Perhaps their threefold repetition of His holiness is intended to extol the holiness of each of the three persons of the Trinity. The Bible refers to the Father as holy (John 17:11), to the Son as holy (Luke 1:35), and to the Spirit as holy (Ephesians 4:30). The living creatures' song of praise also extols God as eternal. They refer to Him as "who was and is and is to come." We, too, ought to praise God for His absolute holiness and eternal existence.