it: i.e. the throne. seraphims. burning ones. No Art. Celestial beings, named but unexplained. Name used of the serpents (Numbers 21:6) because of the burning effect produced by them, just as nachash was used of. snake because of its shining skin (Numbers 21:9), as well as of the shining one of Genesis 3:1. See notes on Genesis 3:1.Numbers 21:6; Numbers 21:9, and App-19. Septuagint reads "and seraphs stood round about Him".
Related Commentaries of Isaiah 6:2
Isaiah 6:2
2 Above it stood the seraphims: each one had six wings; with twain he covered his face, and with twain he covered his feet, and with twain he did fly.