Mark 13:35
So, be alert, because you do not know when the owner of the house will return, whether [some] evening, at midnight, at dawn, or at [mid-] morning.
Matthew 24:42
Therefore be alert, for you do not know on what day the Lord will come.
Matthew 24:44
Therefore, you also should be ready, for the Son of man will come at a time when you least expect Him.
Mark 6:48
When He saw how distressed His disciples were, rowing against an opposing wind, Jesus came to them between three and six o'clock in the morning, walking on the water, and almost walked past them.
Mark 13:33
"You should pay attention; be alert and pray, for you do not know when the time will come [i.e., for the Lord to return].
Mark 14:30
And Jesus said to him, "Truly I tell you, today, in fact this very night, before the rooster crows twice, you will deny [knowing] me three times."
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