Whitman's biographers explain that Whitman's verse is influenced by the aesthetics, musicality and cadences of phrasing and passages in the King James Bible. Whitman employs several techniques of parallelism—a device common to Biblical poetry. While Whitman does not use end rhyme, he employs internal rhyme in passages throughout the poem. Although Whitman's free verse does not use a consistent pattern of meter or rhyme, the disciplined use of other poetic techniques and patterns create a sense of structure. His poetry achieves a sense of cohesive structure and beauty through the internal patterns of sound, diction, specific word choice, and effect of association.