61 The “name” of the Lord sometimes stands by metonymy for the Lord himself, see Exod 23:21; Lev 24:11; Pss 54:1 (54:3 ); 124:8. In Isa 30:27 the point is that he reveals that aspect of his character which his name suggests—he comes as Yahweh (“he is present”), the ever present helper of his people who annihilates their enemies and delivers them. The name “Yahweh” originated in a context where God assured a fearful Moses that he would be with him as he confronted Pharaoh and delivered Israel from slavery in Egypt. See Exod 3.
62 Heb “his anger burns, and heaviness of elevation.” The meaning of the phrase “heaviness of elevation” is unclear, for מַשָּׂאָה (masa’ah, “elevation”) occurs only here. Some understand the term as referring to a cloud (elevated above the earth’s surface), in which case one might translate, “and in heavy clouds” (cf. “with lowering clouds”). Others relate the noun to מָשָׂא (masa’, “burden”) and interpret it as a reference to judgment. In this case one might translate, “and with severe judgment.” The present translation assumes that the noun refers to his glory and that “heaviness” emphasizes its degree.
63 Heb “his lips are full of anger, and his tongue is like consuming fire.” The Lord’s lips and tongue are used metonymically for his word (or perhaps his battle cry; see v. 31).
64 Heb “his breath is like a flooding river.” This might picture the Lord breathing heavily as he runs down his enemy, but in light of the preceding verse, which mentions his lips and tongue, “breath” probably stands metonymically for the word or battle cry that he expels from his mouth as he shouts. In Isa 34:16 and Ps 33:6 the Lord’s “breath” is associated with his command.
65 Heb “shaking nations in a sieve of worthlessness.” It is not certain exactly how שָׁוְא (shavé’, “emptiness, worthlessness”) modifies “sieve.” A sieve is used to separate grain from chaff and isolate what is worthless so that it might be discarded. Perhaps the nations are likened to such chaff; God’s judgment will sift them out for destruction.
66 Heb “and a bit that leads astray [is] in the jaws of the peoples.” Here the nations are likened to horse that can be controlled by a bit placed in its mouth. In this case the Lord uses his sovereign control over the “horse” to lead it to its demise.

In other versions

ESVEnglish Standard Version

Behold, the name of the Lord comes from afar,

burning with his anger, and in thick rising smoke;

his lips are full of fury,

and his tongue is like a devouring fire;

his breath is like an overflowing stream

that reaches up to the neck;

to sift the nations with the sieve of destruction,

and to place on the jaws of the peoples a bridle that leads astray.

NIVNew International Version (2011)

See, the Name of the Lord comes from afar,

with burning anger and dense clouds of smoke;

his lips are full of wrath,

and his tongue is a consuming fire.

His breath is like a rushing torrent,

rising up to the neck.

He shakes the nations in the sieve of destruction;

he places in the jaws of the peoples

a bit that leads them astray.

CSBChristian Standard Bible

Look! The name of the Lord

his anger burning and heavy with smoke.

His lips are full of fury,

and his tongue is like a consuming fire.

His breath is like an overflowing torrent

that rises to the neck.

He comes to sift the nations in a sieve of destruction

and to put a bridle on the jaws of the peoples

to lead them astray.

NLTNew Living Translation

Look! The Lord is coming from far away,

burning with anger,

surrounded by thick, rising smoke.

His lips are filled with fury;

his words consume like fire.

His hot breath pours out like a flood

up to the neck of his enemies.

He will sift out the proud nations for destruction.

He will bridle them and lead them away to ruin.

LEBThe Lexham English Bible

Look! The name of Yahweh comes from afar,

burning with his anger and heaviness of cloud.

His lips are full of indignation,

and his tongue is like a devouring fire.

And his breath is like an overflowing river;

it reaches up to the neck

to shake the nations with the sieve of worthlessness;

and a bridle that leads astray is on the jawbones of the peoples.

KJV 1900King James Version

Behold, the name of the Lord cometh from far,

Burning with his anger, and the burden thereof is heavy:

His lips are full of indignation,

And his tongue as a devouring fire:

And his breath, as an overflowing stream,

Shall reach to the midst of the neck,

To sift the nations with the sieve of vanity:

And there shall be a bridle in the jaws of the people, causing them to err.

Public Domain