12:18Meaning
Daylight discovery and panic With morning, the soldiers realize Peter is gone. Luke stresses the scale of the reaction: it is not a minor disturbance but widespread agitation as they try to figure out what became of him.
Unit 2 (v. 19a): Herod’s search and interrogation
Herod actively looks for Peter but fails to find him. He then questions the guards, treating them as responsible parties who must account for the disappearance.
Unit 3 (v. 19b): Punishment and relocation
After the examination, Herod orders the guards to be executed. He then leaves Judea and goes down to Caesarea, remaining there, marking a shift in the story’s setting and in Herod’s activity.
