Matius 24:42

24:42 “Therefore stay alert, because you do not know on what day ¹  your Lord will come.

Matius 24:44

24:44 Therefore you also must be ready, because the Son of Man will come at an hour when you do not expect him. ² 

Markus 13:35

13:35 Stay alert, then, because you do not know when the owner of the house will return – whether during evening, at midnight, when the rooster crows, or at dawn –

Lukas 12:40

12:40 You also must be ready, because the Son of Man will come at an hour when you do not expect him.” ³ 

[24:42]  ¹ tc Most later mss (L 0281 Ï lat) have here ὥρᾳ ({wra, “hour”) instead of ἡμέρα (Jemera, “day”). Although the merits of this reading could be argued either way, in light of the overwhelming and diverse early support for ἡμέρᾳ ({א B C D W Δ Θ Ë¹³ 33 892 1424, as well as several versions and fathers}), the more general term is surely correct.

[24:44]  ² sn Jesus made clear that his coming could not be timed, and suggested it would take some time – so long, in fact, that some will not be looking for him any longer (at an hour when you do not expect him).

[12:40]  ³ 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).