Matthew 5:25
Come to terms without delay with your opponent while you are yet with him on the way to the court; for fear he should obtain judgement from the magistrate against you, and the magistrate should give you in custody to the officer and you be thrown into prison.
Matthew 24:44-13
Therefore you also must be ready; for it is at a time when you do not expect Him that the Son of Man will come.
Mark 13:32-37
"But as to that day or the exact time no one knows--not even the angels in Heaven, nor the Son, but the Father alone.
Luke 14:31-32
Or what king, marching to encounter another king in war, does not first sit down and deliberate whether he is able with ten thousand men to meet the one who is advancing against him with twenty thousand?
Luke 21:3-36
and He said, "In truth I tell you that this widow, so poor, has thrown in more than any of them.
1 Thessalonians 5:2-4
For you yourselves know perfectly well that the day of the Lord comes like a thief in the night.
James 4:1-10
What causes wars and contentions among you? Is it not the cravings which are ever at war within you for various pleasures?
Revelation 3:3
Be mindful, therefore, of the lessons you have received and heard. Continually lay them to heart, and repent. If, however, you fail to rouse yourself and keep awake, I shall come upon you suddenly like a thief, and you will certainly not know the hour at which I shall come to judge you.