6 Bible Verses about Unreadiness

For man does not know his time. Just as fish are caught in a cruel net and like birds who are seized in a snare, so also {humans} are ensnared at a cruel time when it falls suddenly upon them.

For as in the days before the flood they were eating and drinking, marrying and giving in marriage, until the day Noah entered into the ark. And they did not know [anything] until the deluge came and swept [them] all away. So also the coming of the Son of Man will be.

But if that evil slave should say {to himself}, 'My master is staying away for a long time,' and he begins to beat his fellow slaves and eats and drinks with drunkards, the master of that slave will come on a day that he does not expect and at an hour that he does not know,read more.
and will cut him in two and assign his place with the hypocrites. In that place there will be weeping and gnashing of teeth!

But in the middle of the night there was a shout, 'Behold, the bridegroom! Come out to meet him!' Then all those virgins woke up and trimmed their lamps. And the foolish ones said to the wise ones, 'Give us [some] of your olive oil, because our lamps are going out!'read more.
But the wise ones answered saying, "Certainly there will never be enough for us and for you! Go instead to those who sell [olive oil] and buy [some] for yourselves.' But [while] they had gone away to buy [it] the bridegroom arrived, and those who were ready went inside with him to the wedding celebration, and the door was shut.

"But take care for yourselves, lest your hearts are weighed down with dissipation and drunkenness and the worries of daily life, and that day come upon you suddenly like a trap. For it will come upon all who reside on the face of the whole earth.

Whenever they say "Peace and security," then sudden destruction will overtake them like the birth pains of {a pregnant woman}, and they will not possibly escape.