Isaiah 50:3 - Exposition

I clothe the heavens with blackness . The Egyptian plague of darkness ( Exodus 10:21-23 ) is not adequate to the expressions here used. God means to assert his power of leaving all nature in absolute darkness, if he so choose—a power necessarily belonging to him who said, "Let there be light; and there was light" ( Genesis 1:3 ). I make sackcloth their covering (see Revelation 6:12 , "The sun became black as sackcloth of hair").