[12:38] 1 sn The second or third watch of the night would be between 9 p.m. and 3 a.m. on a Roman schedule and 10 p.m. to 6 a.m. on a Jewish schedule. Luke uses the four-watch schedule of the Romans in Acts 12:4, so that is more probable here. Regardless of the precise times of the watches, however, it is clear that the late-night watches when a person is least alert are in view here.
[12:38] 2 tn Grk “finds (them) thus”; but this has been clarified in the translation by referring to the status (“alert”) mentioned in v. 37.
[12:38] 3 tn Grk “blessed are they”; the referent (the watchful slaves, v. 37) has been specified in the translation for clarity.
[12:40] 4 sn Jesus made clear that his coming could not be timed, and suggested it might take some time – so long, in fact, that some would not be looking for him any longer (at an hour when you do not expect him).