וַיְהִ֕י כַּאֲשֶׁ֥ר זָקֵ֖ן שְׁמוּאֵ֑ל וַיָּ֧שֶׂם אֶת־בָּנָ֛יו שֹׁפְטִ֖ים לְיִשְׂרָאֵֽל׃
And it came to pass, when Samuel was old, that he made his sons judges over Israel.
Read kabbalistic (mystical) interpretation of I Samuel 8:1: and classical mystical sources.