Who is the LORD? Figure of speech Erotesis (App-6). Note the repetition of Pharaoh's "I", answered by Jehovah's "I "eighteen times in Exodus 6:1-8.
voice. Figure of speech Metonymy (of Cause). App-6. Voice put for commands uttered by it.
Israel. Figure of speech Metonymy (of Adjunct). App-6.