1 Peter 4:7
But the end of all things is close at hand; so be sober, watch and pray.
Hebrews 11:7
By faith Noah, warned of God of things not yet seen, reverently gave heed, and built an ark for the saving of his house; by which he condemned the world, and became an heir of the righteousness which is of faith.
2 Peter 3:6-7
and that by the same means the world which then existed was destroyed by a deluge of water.
2 Peter 3:10-12
But the Day of the Lord will come like a thief; and on that Day the heavens will vanish with a crash, the heavenly bodies will melt with fervent heat, and the earth and all its works will be burned up.