Matthew 24:42
Therefore be alert, for you do not know on what day the Lord will come.
Matthew 25:13
Therefore, you should be watchful, for you do not know the day or hour [i.e., when the Son of man will return].
Luke 21:36
But you should be alert at all times, offering earnest prayers, so that you will be strong enough to escape all these things that will happen, and to appear [acceptable] in front of the Son of man [on that day]."
Matthew 24:44
Therefore, you also should be ready, for the Son of man will come at a time when you least expect Him.
1 Corinthians 16:13
You people should be alert; stand firm in the faith; act like [godly] men; be [spiritually] strong.
1 Thessalonians 5:6
So then, we should not be [spiritually] asleep, like the rest [i.e., the unsaved world], but we should be alert and sober [i.e., in control of our senses].
Matthew 24:36
"But no one knows when that day or hour will come. Not even the angels in heaven or the Son [of God] know [when it will happen], but only the Father [does].
Revelation 16:15
[Note: At this point the Lord's voice breaks into John's vision]. ("Look, I am coming like a thief. That person is happy who stays alert and is dressed [properly], so he does not appear naked and have to be shamefully exposed").
Matthew 26:38-41
Then He said to them, "My soul is extremely grieved, even to [the point where I could] die. Stay here and be alert with me [i.e., in prayer]."
Mark 13:33-37
"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].
Luke 12:35-40
"Fasten your belts [i.e., get things ready], keep your lamps lit,
Romans 13:11
Now this [is another reason for observing the law of love]: You should know that it is about time to wake up out of your [spiritual] sleep, because [the day of our final] salvation is now nearer to us than when we first believed [in Christ].
1 Peter 4:7
But the end of everything [as far as your lives are concerned] is near, so be sensible, and sober [so as to be] prayerful.
1 Peter 5:8
Be sensible and alert; your enemy the devil is prowling around like a roaring [i.e., hungry] lion looking for someone to [kill and] eat.
Revelation 3:2-3
Wake up, and strengthen what remains [i.e., those few in the church who were trying to stay faithful], who are about to die. For I have not found [any] of your deeds to be complete before my God.