A.T. Robertson Commentary Revelation 4:5

"And out of the throne proceed lightnings and voices and thunders. And [there was] seven lamps of fire burning before the throne, which are the seven Spirits of God;" — Revelation 4:5 (ASV)

Out of the throne (εκ του θρονου). Back to the throne itself. The imagery is kin to that in Ex 19:16; 24:9f.; Ezekiel 1:22,27.

Proceed (εκπορευοντα). Graphic historical present.

Lightnings and voices and thunders (αστραπα κα φωνα κα βροντα). So exactly in 11:19; 16:18, but in 8:5 with βροντα first, αστραπα last, all old and common words. "The thunderstorm is in Hebrew poetry a familiar symbol of the Divine power: cf., e.g., 1 Samuel 2:10; Psalms 18:9f.; Job 37:4f." (Swete).

Seven lamps of fire (επτα λαμπαδες πυρος). Return to the nominative (ιδου, not ειδον) with ησαν (were) understood. Metaphor drawn from Eze 1:13; Zechariah 4:12f.. Our word "lamp," but here a torch as in 8:10, identified with the Holy Spirit (the Seven Spirits of God) as in 1:4; 3:1, not λυχνια (lampstands) as in 1:12,20, nor λυχνος a hand-lamp with oil (Matthew 5:15). "These torches blaze perpetually before the throne of God" (Swete).