John Gills Exposition of the Bible Commentary

Verse 15 (Revelation 1:15)

And his feet like unto fine brass, as if they burned in a furnace ,.... By which is meant, not his human nature in a suffering state; or his people, the meaner and lower parts of his mystical body, in a like state; or his apostles and ministers, who are supporters of his church, and run to and fro with spiritual knowledge, for which, though they suffer much, are permanent and glorious; but either the power of Christ in bearing up and supporting his people, in the care and government and defence of them; or his ways, works, and walks in his churches, and all his providential administrations towards them, which are holy, just, and righteous, and will be manifest; or his wrath and vengeance in treading down and trampling upon his enemies:

and his voice as the sound of many waters ; meaning his Gospel, as preached by his apostles and ministers, which was heard far and near; see Romans 10:18 ; and which made a great noise in the world; or his voice of vengeance on his enemies, which will be very terrible and irresistible.

- John Gills Exposition of the Bible Commentary