שׁוֹמֵ֣ר מִצְוָ֔ה לֹ֥א יֵדַ֖ע דָּבָ֣ר רָ֑ע וְעֵ֣ת וּמִשְׁפָּ֔ט יֵדַ֖ע לֵ֥ב חָכָֽם׃
Wer das Gebot beobachtet, erfährt nichts Böses, der Sinn des Weisen kennt Zeit und Schicklichkeit.
Reshit Chokhmah
Therefore, it is proper for a man to fulfill the godly work and be trusted with it like a pillar that doesn’t shake, and likewise the word Brit means ‘fulfilling’ like what it says “Come now, let us make a covenant, you and I” (Genesis 31:44). Therefore, one who wants to merit the attribute of ‘Tzadik’ must be strong and trusted in his work, and about this is said “Whoever keeps a precept will know no evil thing (Ra)” (Ecclesiastes 8:5); and you already know based on what was said before what “Ra” (evil) means.