לא תעשון כן לה’ אלקיכם (ראה יב:ד)

Your עבודת השם – serving Hashem shouldn’t be done as “כן” – as one is typically used to doing, it should be done   ‘’לה’ אלוקיכם’’  – for the sake of Hashem and with a new freshness each time.

ראה אנכי נותן לפניכם היום ברכה וקללה (ראה יא: כו)See, I present before you today a blessing and a curse.
The passuk begins in the singular tense “ראה” and switches to the plural tense “לפניכם.” The Torah was given equally to all Yidden, but not all Yidden grasp the Torah equally; each one according to his understanding.