\documentclass{book}

\input TeX4ht.sty \Preamble{html,3,next}
\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}