That is, I will agree with their blessing over B'nei Yisroel. There is a very interesting occurrence in this passage. The only time these three words appear together in this precise order is here in this passage. In fact Paw Naw Vi - Ay Leh Chaw occurs twice in this blessing, this blessing that Hashem instructed Moshe to teach Aharon and his sons. First, this blessing represents Hashem's desire for us, His people.
Second blessings are conditional.
That is, if you do this, then I will do this. Here we observe a correlation between the Holy Sanctuary, The Holy Place, The Tablets and the Judges of righteousness. When he arrived he prayed to Hashem. It was as if his head were bowed during his prayer and before he finished and looked up Rivkah, the answer to his prayer, was already there. Remember, Yosief was sold into captivity by his brothers to a band of Yishmaelites from whom Potiphar purchased him.