Matius 25:13

25:13 Therefore stay alert, because you do not know the day or the hour. ¹ 

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.” ² 

[25:13]  ¹ tc Most later mss (C³ ˹³ 1424^c Ï) also read here “in which the Son of Man is coming” (ἐν ᾗ ὁ υἱὸς τοῦ ἀνθρώπου ἔρχεται, en |h Jo Juio" tou anqrwpou ercetai), reproducing almost verbatim the last line of Matt 24:44. The longer reading thus appears to be an explanatory expansion and should not be considered authentic. The earlier and better witnesses ({̳⁵ א A B C* D L W Δ Θ Ë¹ 33 565 892 1424* lat co}) lack this phrase.

[12:40]  ² 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).