Bible Verses About Watchfulness: Uncertain time of the coming of Christ

`Watch ye therefore, because ye have not known in what hour your Lord doth come;

`Watch therefore, for ye have not known the day nor the hour in which the Son of Man doth come.

watch ye, therefore, for ye have not known when the lord of the house doth come, at even, or at midnight, or at cock-crowing, or at the morning;

lest, having come suddenly, he may find you sleeping;