My bowels. Figure of speech Epizeuxis (App-6), for emphasis. Note the Figure of speech Hypotyposis, verses: 19-31. Put by Figure of speech Metonymy (of Effect), for the emotions which produce and affect their movement.
bowels... very heart... heart. Note the Figure of speech Anabasis. App-6. See note below.
my very heart. the walls of my heart.
thou hast. Hebrew text reads "I have"; but margin and some codices, with three early printed editions, and Revised Version margin, read "thou hast", as in Authorized Version.