February 22, 2021
This "prayer" is similar to Isa 29:16. In the surrounding context of Isa 45, the Lord warns that those who rebel and deny His power and even His existence are without excuse, but they will be put to shame.
February 16, 2021
This "prayer" indeed addresses the Creator, however, it is a prayer of defiance and rejection of the Lord as Creator. Modern examples are also presented in this discussion of Isa 29:15-16.
February 9, 2021
This prayer to the Creator is as simple as it gets. Isaiah, as a type of God the Son, responds to the call, "Who will go for Us?" He Who sits on the throne is described in detail in Revelation 4, He is the Creator; and to Him Isaiah's response-his prayer-is, "Here am I. Send me."