כֹּ֚ה אָמַ֣ר יְהוָ֔ה מָצָ֥א חֵן֙ בַּמִּדְבָּ֔ר עַ֖ם שְׂרִ֣ידֵי חָ֑רֶב הָל֥וֹךְ לְהַרְגִּיע֖וֹ יִשְׂרָאֵֽל׃
Thus saith the LORD: The people that were left of the sword Have found grace in the wilderness, Even Israel, when I go to cause him to rest.
Read kabbalistic (mystical) interpretation of Jeremiah 31:2: and classical mystical sources.