כָּל־אֵ֛לֶּה שִׁבְטֵ֥י יִשְׂרָאֵ֖ל שְׁנֵ֣ים עָשָׂ֑ר וְ֠זֹאת אֲשֶׁר־דִּבֶּ֨ר לָהֶ֤ם אֲבִיהֶם֙ וַיְבָ֣רֶךְ אוֹתָ֔ם אִ֛ישׁ אֲשֶׁ֥ר כְּבִרְכָת֖וֹ בֵּרַ֥ךְ אֹתָֽם׃
All these are the twelve tribes of Israel, and this is it that their father spoke unto them and blessed them; every one according to his blessing he blessed them.
Read Jewish philosophical commentary on Genesis 49:28: and classical philosophical sources.