lamps: He means the one sevenfold Spirit, for "there is one Spirit," and to be sevenfold implies perfection and fulness. But when the Holy Spirit has been mentioned, there fitly follows the water of baptism. For in it the same Spirit is believed to be received. <a
Lightnings, a symbol of God's majesty and power.
Seven lamps burning, which signified the seven spirits of God, the chief spirits that attend his throne. See chap. i. 4. (Witham)
The lightnings, loud voices, and thunders, which come from the throne of God, announce alarms and severe hardships, such as persecutions, heresies, calamities by which he tries the fidelity of his servants on earth. And the seven spirits of God, who appear under the form of burning lamps, are seven Angels, as before mention, (Chap. i. 4.) standing ready to execute the divine commands. (Walmesley) ...