Isaiah 6:3

6:3 They called out to one another, “Holy, holy, holy ¹  is the Lord who commands armies! ²  His majestic splendor fills the entire earth!”

Isaiah 6:8

6:8 I heard the voice of the sovereign master say, “Whom will I send? Who will go on our behalf?” ³  I answered, “Here I am, send me!”

[6:3]  ¹ tn Some have seen a reference to the Trinity in the seraphs’ threefold declaration, “holy, holy, holy.” This proposal has no linguistic or contextual basis and should be dismissed as allegorical. Hebrew sometimes uses repetition for emphasis. (See IBHS 233-34 §12.5a; and GKC 431-32 §133.k.) By repeating the word “holy,” the seraphs emphasize the degree of the Lord’s holiness. For another example of threefold repetition for emphasis, see Ezek 21:27 (Heb. v. 32). (Perhaps Jer 22:29 provides another example.)

[6:3]  ² tn Perhaps in this context, the title has a less militaristic connotation and pictures the Lord as the ruler of the heavenly assembly. See the note at 1:9.

[6:8]  ³ tn Heb “for us.” The plural pronoun refers to the Lord, the seraphs, and the rest of the heavenly assembly.