en_tn/jer/31/02.md

The people who have survived the sword have found favor in the wilderness

The phrase "found favor" is an idiom. Alternate translation: "While the people who have survived the sword have been in the wilderness, I have had grace on them" (See: rc://en/ta/man/jit/figs-idiom)

who have survived the sword

The word "sword" is a metonym for war. Alternate translation: "who have survived the war" (See: rc://en/ta/man/jit/figs-metonymy)

wilderness; I will go out to give rest to Israel

Another possible meaning is "wilderness, where Israel went out to find rest."