The Lord is not slack concerning His promise, as some count slackness, but is longsuffering towards us, not willing that any should perish but that all should come to repentance. But the day of the Lord will come as a thief in the night, in which the heavens will pass away with a great noise, and the elements will melt with fervent heat; both the earth and the works that are in it will be burned up.

2 Peter 3:9-10