2 Peter 2:4, 6-7, 14-15
4 For if God spared not the angels that sinned, but cast them down to hell, and delivered them into chains of darkness, to be reserved unto judgment;
6 And turning the cities of Sodom and Gomorrha into ashes condemned them with an overthrow, making them an ensample unto those that after should live ungodly;
7 And delivered just Lot, vexed with the filthy conversation of the wicked:
14 Having eyes full of adultery, and that cannot cease from sin; beguiling unstable souls: an heart they have exercised with covetous practices; cursed children:
15 Which have forsaken the right way, and are gone astray, following the way of Balaam the son of Bosor, who loved the wages of unrighteousness;
Matthew 24:36, 42, 44
36 But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.
42 Watch therefore: for ye know not what hour your Lord doth come.
44 Therefore be ye also ready: for in such an hour as ye think not the Son of man cometh.