וַיֹּ֤אמֶר יְהוָה֙ אֶל־יְהוֹשֻׁ֔עַ הַיּ֣וֹם הַזֶּ֗ה אָחֵל֙ גַּדֶּלְךָ֔ בְּעֵינֵ֖י כָּל־יִשְׂרָאֵ֑ל אֲשֶׁר֙ יֵֽדְע֔וּן כִּ֗י כַּאֲשֶׁ֥ר הָיִ֛יתִי עִם־מֹשֶׁ֖ה אֶהְיֶ֥ה עִמָּֽךְ׃
And the LORD said unto Joshua: ‘This day will I begin to magnify thee in the sight of all Israel, that they may know that, as I was with Moses, so I will be with thee.
Read halakhic rulings (Jewish law) on Joshua 3:7: and classical halakhic sources.