en_tn/psa/021/007.md

through the covenant faithfulness of the Most High

The abstract noun "faithfulness" can be translated as an adjective. AT: "because the Most High is faithful to his covenant" (See: rc://en/ta/man/translate/figs-abstractnouns)

he will not be moved

This can be stated in active form. AT: "no one will remove him as king" (See: rc://en/ta/man/translate/figs-activepassive)