The lion hath roared, who will not fear? the Lord God hath spoken, who can but prophesy?

11 For the grace of God that bringeth salvation hath appeared to all men, 12 Teaching us that, denying ungodliness and worldly lusts, we should live soberly, righteously, and godly, in this present world; 13 Looking for that blessed hope, and the glorious appearing of the great God and our Saviour Jesus Christ;

-Titus 2:11-13

37But as the days of Noah were, so shall also the coming of the Son of man be.

³⁸ For as in the days that were before the flood they were eating and drinking, marrying and giving in marriage, until the day that Noe entered into the ark,
³⁹ And knew not until the flood came, and took them all away; so shall also the coming of the Son of man be.
⁴⁰ Then shall two be in the field; the one shall be taken, and the other left.
⁴¹ Two women shall be grinding at the mill; the one shall be taken, and the other left.
⁴² Watch therefore: for ye know not what hour your Lord doth come.
⁴³ But know this, that if the goodman of the house had known in what watch the thief would come, he would have watched, and would not have suffered his house to be broken up.
⁴⁴ Therefore be ye also ready: for in such an hour as ye think not the Son of man cometh.

-Matthew 24:37-44 

Not forsaking the assembling of ourselves together, as the manner of some is; but exhorting one another: and so much the more, as ye see the day approaching.

-Hebrews 10:25 

2Knowing this first, that there shall come in the last days scoffers, walking after their own lusts,

⁴ And saying, Where is the promise of his coming? for since the fathers fell asleep, all things continue as they were from the beginning of the creation.
⁵ For this they willingly are ignorant of, that by the word of God the heavens were of old, and the earth standing out of the water and in the water:
⁶ Whereby the world that then was, being overflowed with water, perished:
⁷ But the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.
⁸ But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day.
⁹ The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
¹⁰ But the day of the Lord will come as a thief in the night; in the which the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up.

-II Peter 3:3-10