Ibn Ezra on Numbers 11:17

וירדתי. הכבוד ירד באש בתוך הענן: AND I WILL COME DOWN. God’s glory descended in fire in the midst of the cloud.⁷²In other words, it was God’s glory that descended, not God himself.

ודברתי אתך שם. וכאשר תשמע את הקול ישמעו גם הם: AND SPEAK WITH THEE THERE. When you hear the voice they will also hear.

ואצלתי. כטעם אקח מאשר אצלך ודע כי הרוח כמו החכמה ואם תנתן מחכמת ראובן לשמעון לא תחסר חכמת ראובן רק נשארה כאשר היא והמשל בנר: AND I WILL TAKE OF THE SPIRIT. The meaning of ve-atzalti (and I will take of the spirit) is, I will take from that which you possess.⁷³Etzel means near, or in one’s possession. Note that spirit⁷⁴Here. means wisdom. If some of the wisdom of Reuben is given to Simeon, Reuben’s wisdom is not diminished. It remains as is.⁷⁵Thus Moses’ wisdom was not diminished by having some of it imparted to Joshua. Let the light of a candle serve as an example.⁷⁶A candle’s light is not diminished if it is used to light another candle.