Here people are referred to by their hearts, which emphasize their inner feelings. Alternate translation: "to those who are fearful" (See: [[rc://en/ta/man/translate/figs-synecdoche]])
This can be reworded so that the abstract nouns "vengeance" and "recompense" are expressed as the verb "punish." The words "vengeance" and "recompense" mean the same thing and emphasize that God will punish Judah's enemies. Alternate translation: "your God will punish your enemies for what they have done" (See: [[rc://en/ta/man/translate/figs-abstractnouns]] and [[rc://en/ta/man/translate/figs-doublet]])