רפא נא לה

When Moshe Rabbeinu and Tzipora separate, this represents the Nesira. After the Nesira, Miryam utters Din and becomes ill. Miryam represents Bina. Moshe then prays for her healing:

אל נא רפא נא לה

The Pasuk can be analysed as a sequence of names of HaShem, reading it as

אל נא רפא נ אל ה

The Nun refers to the 50 Gates of Wisdom, Bina. The Heh also refers to Bina, the aspect of HaShem represented by the first Heh in Shem HaShem.