\documentclass[a4paper]{article}

\usepackage{microtype}
\usepackage{fontspec}
\usepackage{xparse}
\usepackage{xcolor}
\usepackage{parskip}[=v1]
\usepackage{titlesec}
\usepackage{imakeidx}
\makeindex[title=Author Index,intoc,options=-q]
\usepackage{hyperref}
\usepackage[style=sbl,indexing=cite,ibidtracker=constrict,idemtracker=citation]{biblatex}
\addbibresource{biblatex-sbl.bib}

\setmonofont{DejaVu Sans Mono}[Scale=MatchLowercase]
\setromanfont{Linux Libertine O}
\setsansfont{Linux Biolinum O}[
  BoldItalicFont={* Bold},
  BoldItalicFeatures={FakeSlant=0.2}
]

\titleformat{\paragraph}
{\normalfont\sffamily\normalsize\bfseries}{\theparagraph}{1em}{}
\titleformat{\subparagraph}
{\normalfont\sffamily\small\scshape}{\thesubparagraph}{1em}{}
\titlespacing*{\paragraph}{0pt}{2ex plus 1ex minus 0.2ex}{0.5ex}
\titlespacing*{\subparagraph}{0pt}{1ex plus 0.2ex}{0em}

\titleclass{\subsubparagraph}{straight}[\subparagraph]
\titleformat{\subsubparagraph}{\normalfont\ttfamily\small}{}{1em}{}
\titlespacing*{\subsubparagraph}{0pt}{0pt}{0pt}

\setcounter{secnumdepth}{4} % how many sectioning levels to assign numbers to

\setlength{\parskip}{1ex plus 0.5ex minus 0.25ex}

\definecolor{biblatex-colour}{rgb}{0.25,0.25,0.65}
\definecolor{reference-colour}{rgb}{0,0.6,0.15}

\ExplSyntaxOn
\NewDocumentCommand \samplemacro { m }
  {
    \subsubparagraph*{#1}
  }
\NewDocumentCommand \sblrefsamplecite { s m m m o o m }
  {
    \IfNoValueTF { #5 }
      {
        \IfNoValueT { #6 }
          {
            \IfBooleanF { #1 }
              {
                \samplemacro{\textbackslash #2\{#7\}}
              }
            \color{biblatex-colour}
            \hspace*{\bibindent}#4\csuse{#3}{#7}
          }
      }
      {
        \IfNoValueTF { #6 }
          {
            \IfBooleanF { #1 }
              {
                \samplemacro{\textbackslash #2[#5]\{#7\}}
              }
            \color{biblatex-colour}
            \hspace*{\bibindent}#4\csuse{#3}[#5]{#7}
          }
          {
            \IfBooleanF { #1 }
              {
                \samplemacro{\textbackslash #2[#5][#6]\{#7\}}
              }
            \color{biblatex-colour}
            \hspace*{\bibindent}#4\csuse{#3}[#5][#6]{#7}
          }
      }
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\NewDocumentCommand \samplecite { s m o o m }
  {
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    \IfBooleanTF { #1 }
      {
        \sblrefsamplecite*{autocite}{cite}{#2.~}[#3][#4]{#5}.\par
      }
      {
        \sblrefsamplecite{autocite}{cite}{#2.~}[#3][#4]{#5}.\par
      }
      \color{black}
  }
\NewDocumentCommand \sampleparencite { s o o m }
  {
    \rmfamily
    \IfBooleanTF { #1 }
      {
        \sblrefsamplecite*{parencite}{parencite}{}[#2][#3]{#4}\par
      }
      {
        \sblrefsamplecite{parencite}{parencite}{}[#2][#3]{#4}\par
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      \color{black}
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\NewDocumentCommand \samplebib { s m }
  {
    \IfBooleanF { #1 }
      {
        \samplemacro{\textbackslash printbibliography}
      }
    \color{biblatex-colour}
    \rmfamily\hangindent\bibindent\bibentrycite{#2}.\par
    \color{black}
  }
\NewDocumentCommand \samplebiblist { s m }
  {
    \IfBooleanF { #1 }
      {
        \samplemacro{\textbackslash printbiblist\{abbreviations\}}
      }
    \color{biblatex-colour}
    \biblistcite{#2}
    \color{black}
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\NewDocumentCommand \refbiblist { m m }
  {
    \color{reference-colour}
    \strut\rmfamily\hangindent 6em\rlap{#1}\hskip 6em #2\par
    \color{black}
  }
\ExplSyntaxOff

\newenvironment{biboutput}{%
  \subparagraph{Biblatex Output}
}{\color{black}}

\newenvironment{refimp}{%
  \subparagraph{Reference Implementation}
  \color{reference-colour}
  \rm
}{\par\color{black}}

\title{Biblatex-SBL \emph{ibidem} and \emph{idem} Test File}
\author{David Purton}
\date{}

\begin{document}

\maketitle

This file tests the behaviour of the various options related to using
\emph{ibidem} and \emph{idem} in Biblatex-SBL. By default neither
\emph{ibidem} nor \emph{idem} are used.\footnote{See
\url{https://sblhs2.com/2018/02/01/cms-update-ibid/}.} When referencing
multiple works by the same author within a footnote, subsequent references use
only the family name of the author.\footnote{See
\url{https://sblhs2.com/2016/10/11/placement-citations-traditional/}.} This
corresponds to the \verb|biblatex| option \verb|idemtracker=sbl|.

\section*{Using \emph{ibidem}}

By default ibid.\@ is not used across page breaks and \emph{ibidem} is taken
to mean ‘same author + same title + same page’.\footnote{See
\url{https://sblhs2.com/2017/01/05/subsequent-bibliographic-references/}.} See
\texttt{biblatex-sbl.pdf} for a description of the options
\texttt{ibidtracker} can take. It is recommended to use
\verb|ibidtracker=constrict| for SBL compliance.

\begin{biboutput}
  \samplemacro{\textbackslash usepackage[style=sbl,ibidtracker=constrict]\{biblatex\}}
  \samplecite{1}[127]{talbert:1992}
  \samplecite{2}[22]{talbert:1992}
  \samplecite{3}[22]{talbert:1992}
  \samplecite{4}[237]{robinson+koester:1971}
  \samplecite{5}[22]{talbert:1992}
  \samplemacro{\textbackslash clearpage}
  \clearpage
  \samplecite{6}[22]{talbert:1992}
\end{biboutput}

\section*{Using \emph{ibidem} across pages}

Set the \texttt{pagetracker} option to \texttt{false} to allow the first
citation on a page to be ibid. 

\boolfalse{pagetracker}

\begin{biboutput}
  \samplemacro{\textbackslash usepackage[style=sbl,ibidtracker=constrict,pagetracker=false]\{biblatex\}}
  \samplecite{7}[53]{scott+etal:1993}
  \samplecite{8}[42]{scott+etal:1993}
  \samplemacro{\textbackslash clearpage}
  \clearpage
  \samplecite{9}[42]{scott+etal:1993}
\end{biboutput}

\section*{\emph{Ibidem} meaning ‘same author + same title’}

Turn off the \texttt{ibidpage} option to indicate that \emph{ibidem} should
mean ‘same author + same title’.

\makeatletter
\blx@opt@loccittracker@false
\makeatother

\begin{biboutput}
  \samplemacro{\textbackslash usepackage[style=sbl,ibidtracker=constrict,ibidpage=false]\{biblatex\}}
  \samplecite{10}[28]{egger:1996}
  \samplecite{11}[28]{egger:1996}
  \samplecite{12}[291]{egger:1996}
\end{biboutput}

\section*{Using \emph{idem}}

By default \emph{idem} is not used. Rather only the family name of the author
is given for subsequent references when works by the same author are cited
within a single footnote. \emph{Idem} tracking is controlled using
the \texttt{idemtracker} option. See \texttt{biblatex-sbl.pdf} for a
description of the options \texttt{idemtracker} can take. To comply with SBL
style, \verb|idemtracker=citation| should be used.\footnote{See
\url{https://sblhs2.com/2017/01/10/idem/}.}

\begin{biboutput}
  \samplemacro{\textbackslash usepackage[style=sbl,idemtracker=citation]\{biblatex\}}
  \samplemacro{\textbackslash autocites[35]\{vanseters:1997\}\{vanseters:1995\}}
  \color{biblatex-colour}
  \hspace*{\bibindent}13.~\cites[35]{vanseters:1997}{vanseters:1995}.
  \color{black}
  \samplemacro{\textbackslash
  autocites[35]\{vanseters:1997\}[222]\{vanseters:1995\}}
  \color{biblatex-colour}
  \hspace*{\bibindent}14.~\cites[35]{vanseters:1997}[222]{vanseters:1995}.
  \color{black}
  \samplecite{15}[35]{vanseters:1997}
\end{biboutput}

\printbibliography

\printindex

\end{document}