Charles Spurgeon Commentary 2 Peter 3:13

"But, according to his promise, we look for new heavens and a new earth, wherein dwelleth righteousness." — 2 Peter 3:13 (ASV)

Nevertheless we, according to his promise, look for new heavens and a new earth, wherein dwelleth righteousness.

The end of this world will be the beginning of a new and better one, of which "righteousness" will be the great characteristic.