ציטירנדיקער פּירוש אויף תהילים 52:3

אל נא רפא נא לה, “O Lord, please heal her.” The attribute El which Moses prayed to is the one with the power to heal; it is part of the attribute of Justice “wrapped” in Mercy. In most instances when this attribute is mentioned it represents חסד, “G’d’s loving kindness." Examples are: Psalms 22,2 אלי אלי למה עזבתני, “My G’d, My G’d why did You forsake me?” or Psalms 50,1 אל אלוהים דבר וירא ארץ, “G’d the Lord G’d spoke, and summoned forth the earth.” The sequence of these attributes is חסד-דין-רחמים, the attributes which were employed by G’d when He created the universe. We also have a verse in Psalms 99,8 where G’d is described as relating to the Jewish people as אל נושא היית להם “You related to them as a G’d who forgives.” If, in apparent contradiction to the aforementioned, we find a verse in Psalms 7,12 which describes ואל זועם בכל יום, “a G’d who pronounces doom each day,” the meaning is that only on such days as the attribute of Justice is manifest does G’d pronounce doom. There are many days when that attribute is not in evidence seeing that the attribute of חסד has displaced it as we know from Genesis 18,23. (where Avraham prayed for the good people in Sodom).

א-ל נא רפא נא לה. "Please O Lord, heal her." Moses addressed the attribute of חסד, similar to Psalms 52,3 where David speaks of חסד קל. [According to Rabbi Moshe Alshich the חסד, "kindness" of G'd's anger, is its very brevity. It lasts a second, no more. Ed.] The words רפא נא are a plea to grant the cure immediately.