en_tn/2ch/07/03.md

they bowed down with their faces to the ground on the stone pavement

This is a position of humility and worship. Alternate translation: "they lay down on the ground with their faces touching the stone pavement" (See: rc://en/ta/man/jit/translate-symaction)

his covenant loyalty endures forever

The abstract noun "covenant loyalty" can be expressed with the adjective "loyal" and the verb "promise." Alternate translation: "God will always be loyal to us because of his covenant" or "God will always faithfully do for us what he promised" (See: rc://en/ta/man/jit/figs-abstractnouns)