וְנוֹדַ֤ע בַּגּוֹיִם֙ זַרְעָ֔ם וְצֶאֱצָאֵיהֶ֖ם בְּת֣וֹךְ הָעַמִּ֑ים כָּל־רֹֽאֵיהֶם֙ יַכִּיר֔וּם כִּ֛י הֵ֥ם זֶ֖רַע בֵּרַ֥ךְ יְהוָֽה׃ (ס)
And their seed shall be known among the nations, And their offspring among the peoples; All that see them shall acknowledge them, That they are the seed which the LORD hath blessed.
Read halakhic rulings (Jewish law) on Isaiah 61:9: and classical halakhic sources.