Luke 12:40

You too, be ready; for the Son of Man is coming at an hour that you do not expect.”

Matthew 24:42

“Therefore be on the alert, for you do not know which day your Lord is coming.

Matthew 24:44

For this reason you also must be ready; for the Son of Man is coming at an hour when you do not think He will.

Matthew 25:13

Be on the alert then, for you do not know the day nor the hour.

Mark 13:33-36

“Take heed, keep on the alert; for you do not know when the appointed time will come.

Luke 21:34-36

Be on guard, so that your hearts will not be weighted down with dissipation and drunkenness and the worries of life, and that day will not come on you suddenly like a trap;

Romans 13:11

Do this, knowing the time, that it is already the hour for you to awaken from sleep; for now salvation is nearer to us than when we believed.

Romans 13:14

But put on the Lord Jesus Christ, and make no provision for the flesh in regard to its lusts.

1 Thessalonians 5:6

so then let us not sleep as others do, but let us be alert and sober.

2 Peter 3:12-14

looking for and hastening the coming of the day of God, because of which the heavens will be destroyed by burning, and the elements will melt with intense heat!

Revelation 19:7

Let us rejoice and be glad and give the glory to Him, for the marriage of the Lamb has come and His bride has made herself ready.”

Treasury of Scripture Knowledge

Summary

Be ye therefore ready also: for the Son of man cometh at an hour when ye think not.

Bible References

General references

Luke 21:34
Be on guard, so that your hearts will not be weighted down with dissipation and drunkenness and the worries of life, and that day will not come on you suddenly like a trap;
Matthew 24:42
“Therefore be on the alert, for you do not know which day your Lord is coming.
Matthew 25:13
Be on the alert then, for you do not know the day nor the hour.
Mark 13:33
“Take heed, keep on the alert; for you do not know when the appointed time will come.
Romans 13:11
Do this, knowing the time, that it is already the hour for you to awaken from sleep; for now salvation is nearer to us than when we believed.
1 Thessalonians 5:6
so then let us not sleep as others do, but let us be alert and sober.
2 Peter 3:12
looking for and hastening the coming of the day of God, because of which the heavens will be destroyed by burning, and the elements will melt with intense heat!
Revelation 19:7
Let us rejoice and be glad and give the glory to Him, for the marriage of the Lamb has come and His bride has made herself ready.”