Mark 13:35

31 Heaven and earth will pass away, but my words will not pass away.

32 But of that day or that hour no one knows, not even the angels in heaven, neither the Son, but only the Father.

33 Watch, keep alert, and pray; for you don`t know when the time is.

34 "It is like a man, traveling to another country, having left his house, and given authority to his servants, and to each one his work, and also commanded the doorkeeper to keep watch.

35 Watch therefore, for you don`t know when the lord of the house is coming, whether at evening, or at midnight, or when the rooster crows, or in the morning;

36 lest coming suddenly he might find you sleeping.

37 What I tell you, I tell all: Watch."