The other way to do this would be to use a module file. The simplest module just needs to contain a list of references (or reference ranges) something like this:
\ref LEV 20:07
\ref DEU 16:17
\ref DEU 33:27
\ref JOS 1:9
\ref JOS 24:15
\ref 1SA 15:22
\ref 2SA 22:31
\ref 1CH 28:9
But if you want other material interleaved with the scripture portions, you can add other markers. (These are described in Paratext’s help system).
\s Holiness
\r $(LEV 20:07)
\ref LEV 20:07
\s Giving
\r $(DEU 16:17)
\ref DEU 16:17
\s God’s protection
\r $(DEU 33:27)
\ref DEU 33:27
\s Courage
\r $(JOS 1:9)
\ref JOS 1:9
\s Serving God
\r $(JOS 24:15)
\ref JOS 24:15
\s Obedience
\r $(1SA 15:22)
\ref 1SA 15:22
\s God’s protection
\r $(2SA 22:31)
\ref 2SA 22:31
\s Seeking God
\r $(1CH 28:9)
\ref 1CH 28:9
Note that you don’t have to use Paratext’s XXA-XXG books for the module; instead you can point PTXprint to the file directly as shown: