Misinterpretations often reduce this passage to mere practical advice on physical home security, like bolting doors or setting alarms, overlooking its parabolic intent about eschatological preparedness; others misconstrue it as endorsing paranoia or fear of literal thieves rather than alertness for Christ's unpredictable coming, or wrongly infer that discerning signs allows prediction of the exact timing, which contradicts the emphasis on uncertainty throughout the discourse.
Luke 12:39
King James Version (1769)
39 And this know, that if the goodman of the house had known what hour the thief would come, he would have watched, and not have suffered his house to be broken through.
Jesus employs the metaphor of a homeowner who would vigilantly guard his house if aware of a thief's arrival time to underscore the essential truth that believers must maintain constant spiritual readiness, as the Son of Man's return will be sudden and unforeseen, urging faithful stewardship and watchfulness in daily life without knowing the precise hour.