Mark 13:37

And what I say to you, I say to all, 'Watch.'"

Watch, therefore, for ye know not when the master of the house is coming, at evening, or at midnight, or at cock-crowing, or in the morning;

Take heed, watch [and pray]; for ye know not when the time is.

And Peter said, "Lord, speakest Thou this parable to us, or to all?"

Treasury of Scripture Knowledge

And what I say unto you I say unto all, Watch.

Watch, therefore, because ye know not the day, nor the hour!

Take heed, watch [and pray]; for ye know not when the time is.