"Sheep" contains a modified version of Psalm 23, which continues the traditional "The Lord is my shepherd" with words like "he maketh me to hang on hooks in high places and converteth me to lamb cutlets" (referring to the sheep of the title).
The album is book-ended by each half of "Pigs on the Wing", a simple love song in which a glimmer of hope is offered despite the anger expressed in the album's three other songs.