Matthew 24:36
Context24:36 “But as for that day and hour no one knows it – not even the angels in heaven 1 – except the Father alone.
Matthew 24:44
Context24:44 Therefore you also must be ready, because the Son of Man will come at an hour when you do not expect him. 2
Mark 13:33
Context13:33 Watch out! Stay alert! 3 For you do not know when the time will come.
[24:36] 1 tc ‡ Some important witnesses, including early Alexandrian and Western
[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).
[13:33] 3 tc The vast majority of witnesses (א A C L W Θ Ψ Ë1,13 Ï lat sy co) have καὶ προσεύχεσθε after ἀγρυπνεῖτε (agrupneite kai proseucesqe, “stay alert and pray”). This may be a motivated reading, influenced by the similar command in Mark 14:38 where προσεύχεσθε is solidly attested, and more generally from the parallel in Luke 21:36 (though δέομαι [deomai, “ask”] is used there). As B. M. Metzger notes, it is a predictable variant that scribes would have been likely to produce independently of each other (TCGNT 95). The words are not found in B D 2427 a c {d} k. Although the external evidence for the shorter reading is slender, it probably better accounts for the longer reading than vice versa.