Or HaChaim on Deuteronomy 33:16/אור החיים על דברים ל״ג:ט״ז

1 ורצון שכני סנה, "and the goodwill of the One who allotted me a place at the burning bush." Moses refers to the time when he found favour in G'd's eyes who appointed him to release the Jewish people from their painful bondage. This is the reference to his having stood in front of the burning bush.

2תבאתה לראש יוסף ולקדקוד, "may these rest on the head of Joseph, etc." Moses speaks in respect of two outstanding virtues of Joseph. 1) Although he had been exiled to Egypt and had experienced many temptations and injustices he remained loyal to his father's upbringing. (Compare what Midrash Rabbah 1,7 writes on Exodus 1,5, i.e. "although Joseph was in Egypt.") Moses alluded to this when speaking of ראש יוסף. 2) The second virtue of Joseph deserving special mention is the fact that he repaid the evil his brothers had done to him by doing good for them. Tanchuma explains this on Genesis 37,17 נסעו מזה. In spite of the brothers having severed their connection with Joseph at that time, he provided for them as we know from Genesis 47,12.