en_tn/isa/57/01.md

the people of covenant faithfulness

"the people who are just and keep God's law" or "the people who are loyal to God"

are gathered away…rest in their bed

Both of these refer to dying. (See: rc://en/ta/man/translate/figs-euphemism)

that the righteous is gathered away from the evil

AT: "that the righteous people die, and Yahweh takes them away from all that is evil" (See: rc://en/ta/man/translate/figs-activepassive)

He enters into peace

"The righteous enter into peace"

those who walk in their uprightness

AT: "those who have done what is right"