Rashi on Exodus 33:22/רש"י על שמות ל״ג:כ״ב

1בעבר כבדי WHEN MY GLORY PASSETH BY – i. e. when I shall pass before you.

2בנקרת הצור IN A CLEFT OF THE CRAG — נקרה is similar in meaning to the verbs in (Numbers 16:14) “Wilt thou bore out (תנקר) the eyes of these men?”; (Proverbs 30:17) “The ravens of the valley shall pick it out (יקרהו)‎”; (2 Kings 19:24) “I have digged a well (קרתי) and drunk strange waters”. All these have the same derivation. נקרת הצור thus means a place dug out of the rock.

3ושכתי כפי AND I WILL SHELTER [THEE] WITH MY HAND — Hence it is evident that permission has been given to the destructive agencies to wound. The Targum renders ושכתי כפי by ואגין במימרי “I will protect thee with My word” This is merely a circumlocution in a manner more respectful to the Most High God and the Targum did not translate it literally because He (God) does not need to cover a person with the hand actually in order to protect him.