From "A Living and a Dead Faith" by William Cowper (part of the "Olney Hymns"):
To walk as children of the day,
To mark the precepts' holy light,
To wage the warfare, watch, and pray,
Show who are pleasing in his sight.
I'm baffled a bit by this stanza. I vaguely understand the general meaning (although "wage the warfare" might be harder to explain).
But the main point is that I'm not sure where the subject(s) and the object(s) are.
Is this an inverted word order, with "who are pleasing in his sight" the subject?
"The people who are pleasing in the sight of God exhibit the following behaviours: they walk as children of the day, they mark the precepts' holy light, they 'wage the warfare' (maybe metaphorically, a war on sins)".
Am I right? My guess is that "show" could mean "exhibit (a behaviour)" here.
I struggle to imagine the to-infinitive phrases (to walk, to mark..) as the subjects of the sentence.