I split it up into one entry for each, for rendering or searching.
That's very human-friendly, as you can clearly denote a group of literary excerpts, that are meant to be clustered and displayed together. It's very common, with religious texts.
`book:: 2 Maccabees 6:18-31, Psalm 3:2-7, 1 John 4:10b, Luke 19:1-10` would give you today's Daily Readings, like so:
[[book:: 2 Maccabees 6:18-31, Psalm 3:2-7, 1 John 4:10b, Luke 19:1-10]]