וַיְהִי֙ מִֽמָּחֳרָ֔ת וַיֵּ֥שֶׁב מֹשֶׁ֖ה לִשְׁפֹּ֣ט אֶת־הָעָ֑ם וַיַּעֲמֹ֤ד הָעָם֙ עַל־מֹשֶׁ֔ה מִן־הַבֹּ֖קֶר עַד־הָעָֽרֶב׃
And it came to pass on the morrow, that Moses sat to judge the people; and the people stood about Moses from the morning unto the evening.
Read kabbalistic (mystical) interpretation of Exodus 18:13: and classical mystical sources.