Deut 4:6

וּשְׁמַרְתֶּם֮ וַעֲשִׂיתֶם֒ כִּ֣י הִ֤וא חָכְמַתְכֶם֙ וּבִ֣ינַתְכֶ֔ם לְעֵינֵ֖י הָעַמִּ֑ים אֲשֶׁ֣ר יִשְׁמְע֗וּן אֵ֚ת כָּל־הַחֻקִּ֣ים הָאֵ֔לֶּה וְאָמְר֗וּ רַ֚ק עַם־חָכָ֣ם וְנָב֔וֹן הַגּ֥וֹי הַגָּד֖וֹל הַזֶּֽה׃

Observe them carefully, for this will show your wisdom and understanding in the sight of the peoples, who will hear of all these statutes and say, “Surely this great nation is a wise and understanding people.”