2 Pedro 3

8 But, beloved, let not this one thing be hidden [from you], that one day [is] with [the] Lord as a thousand years, and a thousand years as one day.

9 The Lord is not slow concerning His promise, as some count slowness, but is long-suffering toward us, not purposing that any [of us] 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 which the heavens will pass away with a rushing noise, and [the] elements will melt with fervent heat. And the earth and the works in it will be burned up.