וַיֹּ֤אמֶר יְהוָה֙ אֶל־מֹשֶׁ֔ה בֹּ֖א אֶל־פַּרְעֹ֑ה כִּֽי־אֲנִ֞י הִכְבַּ֤דְתִּי אֶת־לִבּוֹ֙ וְאֶת־לֵ֣ב עֲבָדָ֔יו לְמַ֗עַן שִׁתִ֛י אֹתֹתַ֥י אֵ֖לֶּה בְּקִרְבּֽוֹ׃
I rzekł Wiekuisty do Mojżesza: "Idź do Faraona: gdyż Ja uczyniłem uporném serce jego i serce sług jego, abym ustanowił te znaki Moje w pośród niego.
Zohar
AND THE LORD SAID UNTO MOSES, GO IN UNTO PHARAOH, FOR I HAVE HARDENED HIS HEART. R. Judah opened here with the verse: Blessed is the people that knows the joyful sound; O Lord, they shall walk in the light of thy countenance (Ps. 89, 16). He exclaimed: ‘How important it is for man to walk in the ways of the Holy One, blessed be He, and keep the commandments of the Torah, that so he may be worthy of the world to come and triumph over all accusations, both on earth and in heaven! For as there are accusers of man here below, so there are also accusers above.