I saw…the Lord sitting upon a throne, high and lifted up, and His train filled the temple. 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. And one cried unto another, and said, Holy, holy, holy, is the Lord of Hosts: the whole earth is full of His glory. And the posts of the door moved at the voice of him that cried, and the house was filled with smoke.@Isaiah 6:1-4

Martin Luther, 1526 (Jesaia, dem Propheten, das geschah); composite translation ( pdf nwc).

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Martin Luther (1483-1546)

Isaiah, mighty seer, in days of old
The Lord of all in spirit did behold
High on a lofty throne, in splendor bright,
With flowing train that filled the temple quite.
Above the throne were stately seraphim;
Six wings had they, these messengers of Him.
With twain they veiled their faces, as was meet,
With twain in reverent awe they hid their feet,
And with the other twain aloft they soared,
One to the other called and praised the Lord:
Holy is God, the Lord of Sabaoth!
Holy is God, the Lord of Sabaoth!
Holy is God, the Lord of Sabaoth!
Behold, His glory filleth all the earth!

The beams and lintels trembled at the cry,
And clouds of smoke enwrapped the throne on high.