en_tn/2pe/03/12.md

the heavens will be destroyed by fire, and the elements will be melted in great heat

This can be stated in active form. Alternate translation: "God will destroy the heavens by fire, and he will melt the elements in great heat" (See: rc://en/ta/man/translate/figs-activepassive)

the elements

Possible meanings are 1) the heavenly bodies, such as the sun, moon, and stars or 2) the things that make up heaven and earth, such as soil, air, fire, and water. See how you translated this in 2 Peter 3:10.