Matthew 24:42

BIB(i) 42 Γρηγορεῖτε (Keep watch) οὖν (therefore), ὅτι (for) οὐκ (not) οἴδατε (you know) ποίᾳ (on what) ἡμέρᾳ (day) ὁ (the) κύριος (Lord) ὑμῶν (of you) ἔρχεται (comes).