\documentclass{book}
 
 \input TeX4ht.sty \Preamble{html,sections-}
 \begin{document}  \EndPreamble
 
 \chapter{Psalms (131:1)}
 \section{My heart}
 
 \subsection{is not} haughty,
 \subsection{nor} mine eyes lofty:
 
 \section{neither do}
 
 I exercise myself in great
 matters, or in things too high
 for me.
 
 \end{document}