2 Peter 3:8

3:8 Now, dear friends, do not let this one thing escape your notice, that a single day is like a thousand years with the Lord and a thousand years are like a single day.

2 Peter 3:17

3:17 Therefore, dear friends, since you have been forewarned, be on your guard that you do not get led astray by the error of these unprincipled men and fall from your firm grasp on the truth.