What does 2 Chronicles 6:37 mean?

'but if they come to their senses in the land where they’re held captive, turn back to you, and beg for your mercy, saying, “We’ve sinned, we’ve done wrong, we’ve acted wickedly,”' 2 Chronicles 6:37 - Modern Text Bible

(He describes true repentance, even from far away, as the way back to God.)