First, Yosef says: כִּי לְמִּחְיָּה שְׁלָּחַנִּי אֱלֹקִּים לִּפְנֵיכֶם It was Hashem who sent me down to Mitzrayim (i.e., not you) in order to provide food for you. And then he repeats: וַיִּשְׁלָּחֵנִּי אֱלֹקִּם לִּפְנֵיכֶם לָּשׂוּם לָּכֶם שְׁאֵרִּית בָּאָּרֶץ וּלְהַחֲיוֹת לָּכֶם לִּפְלֵיטָּה גְדוֹלָּה Hashem sent me here in order to save your lives. Twice he insists it’s all Hashem who caused all this. And then he says: לֹא אַתֶם שְׁלַחְתֶם אֹתִּי הֵנָּה כִּי הָּאֱלֹקִּים It is NOT you who sent me down here, only Hashem. The third time he rubs it in that it wasn’t you, only Hashem! This is called Limud HaMussar, when you repeat again and again, so that it should sink in. Especially Emuna and Bitachon, where people feel that they are doing things, they need lots of Chazzara (review): It wasn’t you doing, only Hashem.
And then he starts (what looks like) boasting, and he says: וַיְשִּימֵנִּי לְאָב לְפַרְעֹה וּלְאָדוֹן לְכָל בֵיתוֹ וּמשֵׁל בְכָל אֶרֶץ מִּצְרָּיִם Hashem made me 1. father (i.e., advisor) to Paroh, 2. master of his whole palace, and 3. ruler over the entire land of Mitzrayim. He mentions three different high positions, and he gives credit to Hashem for all of them: 1. Being a father to the king! 2. A master to his whole palace, and 3. a ruler over the entire country.
