en_tn/2ch/20/21.md

his covenant faithfulness endures forever

The abstract noun "faithfulness" can be stated as "faithfully" or "faithful." See how you translated "covenant faithfulness" in 2 Chronicles 7:3. AT: "he faithfully loves us forever" or "he is always faithful to his covenant with us" (See: rc://en/ta/man/translate/figs-abstractnouns)