Beowulf by Burton Raffel

The allusion is the Biblical creation from the Book of Genesis.

The Almighty making the earth, shaping

These beautiful plains marked off by oceans,

Then proudly setting the sun and moon

To glow across the land and light it;

The corners of the earth were made lovely with trees

And leaves, made quick with life, with each

Of the nations who now move on its face.

And then As now warriors sang of their pleasure: