משך חכמה — כאשר צוה ה' את משה — חוזר שבע פעמים

Q — Why does "כאשר צוה ה' את משה" repeat seven times specifically about the בגדי כהונה (and not about the building of the Mishkan itself)?

A — Two answers: (1) The garments contain shaatnez (wool and linen) — permitted only by a direct command from Hashem to Moshe, since no later prophet may override "לא תלבש שעטנז" — so the verse emphasizes that this very specific Mosaic directive is the source of permission; (2) Items shaped like Mishkan kelim are forbidden for private use, so a Mishkan vessel defaults to being made for the Mishkan; bigdei kehunah, however, may be made for hedyot, so each garment requires explicit lishmah intent — hence the repeated "כאשר צוה ה'" indicating that each was made "לשם ציווי ה'."