Charles Ellicott Commentary Isaiah 30:27

"Behold, the name of Jehovah cometh from far, burning with his anger, and in thick rising smoke: his lips are full of indignation, and his tongue is as a devouring fire;" — Isaiah 30:27 (ASV)

Behold, the name of the Lord cometh from far ... —The use of “the Name of Jehovah” for Jehovah Himself is noticeable as an anticipation of the later use of the memra (that is, “word”) in the Targumim (or paraphrases) of the sacred writings, and of the logos of St. John, a distinct, though not defined, conception of a duality in the Divine essence. In other respects, the vision of the Theophany has its parallels in Judges 5:4-5 and Exodus 24:17.

And the burden thereof is heavy. —Better, in thick uplifting of smoke.