Musar zu Bamidbar 12:13

Yalkut Shimoni item 177 on Exodus 6,12, where we have another instance in which Moses uses the word לאמור when speaking to G–d, says that there are altogether four such instances. Rabbi Eleazar ben Azaryah claims that Moses demanded that G–d reply to him, i.e. “לאמור, whether He would redeem the Children of Israel or not. G–d responded in Exodus 6,1: "Now you will see what I shall do to Pharaoh, etc." A similar incident occurred when the Torah reported Moses as using this expression in Numbers 12,13 when he wanted an immediate answer whether G–d was going to heal Miriam or not. There, too, G–d is reported as responding to this outcry in verse 14, indicating that Miriam would be healed after a week. We also have such an instance in Numbers 27,15 where Moses wanted a reply from G–d to his request that He appoint a suitable leader in his stead. G–d responded in verse 18 that Joshua would be the new leader of the people. Lastly, the Yakut quotes the verse in our portion where Moses supposedly demanded an immediate response to his request to enter ארץ ישראל.

The camp of Ephrayim, which faces West, the direction of our prayers, the direction of the שכינה, the Holy of Holies, is the region behind which the angel רפאל is positioned We find an allusion to this in Moses' prayer for Miriam, 12,13, "א-ל נא, רפא נא לה" Prayer corresponds to the letter ו in the Ineffable Name of G–d, because the conditions for successful prayer are 3, i.e. in reality 6. 1) Prayer is called עין ולב, eye and heart. It is called "eye," because Psalms 145,15, says: "all eyes are on You." It is called "heart," since the Torah in Deut 11,13, requires us to serve the Lord "with all your hearts." This demand may appear as a contradiction in terms.