You can use, possibly amongst other choices, paracol or parcolumns. Each have their own option to specify/choose from.
paracol

\documentclass{article}
\usepackage[margin=1in]{geometry}% Just for this example
\usepackage{paracol,lipsum}
\begin{document}
\sloppy% Just for this example
\lipsum[1]
\columnratio{0.4}
%\setlength{\columnseprule}{.4pt}
\begin{paracol}{2}
\lipsum[2]
\switchcolumn
\lipsum[3]
\end{paracol}
\lipsum[4]
\end{document}
parcolumns

\documentclass{article}
\usepackage[margin=1in]{geometry}% Just for this example
\usepackage{parcolumns,lipsum}
\begin{document}
\sloppy% Just for this example
\lipsum[1]
\begin{parcolumns}[colwidths={1=.4\linewidth},rulebetween]{2}
\colchunk{\lipsum[2]}
\colchunk{\lipsum[3]}
\end{parcolumns}
\lipsum[4]
\end{document}
paracolpackage, for example – Sep 12 '16 at 16:58multicolis another option – musarithmia Sep 12 '16 at 17:15