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 42:17

42:17 Those who trust in idols

will turn back and be utterly humiliated, ³ 

those who say to metal images, ‘You are our gods.’”

[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.

[42:17]  ³ tn Heb “be ashamed with shame”; ASV, NASB “be utterly put to shame.”