To bind his princes at his pleasure; and teach his senators wisdom.
Ver. 22. To bind his princes at his pleasure] To overawe and to overrule them, to bind them in prison, if need so required, as himself had been bound, and that at his pleasure, or according to his own soul, sine consensu Pharaoh, saith Rabbi Solomon; without Pharaoh's consent, as he dealt by Potiphar, say other Rabbis.
And teach his senators wisdom] Policy and piety, which yet the Egyptians long retained not.