וַאֲנִ֥י אַקְשֶׁ֖ה אֶת־לֵ֣ב פַּרְעֹ֑ה וְהִרְבֵּיתִ֧י אֶת־אֹתֹתַ֛י וְאֶת־מוֹפְתַ֖י בְּאֶ֥רֶץ מִצְרָֽיִם׃
Wohl werd‘ ich verhärten das Herz Pharaos und dadurch mehren meine Zeichen und Wunder im Lande Ägypten.
Exodus
Adonoy said to Moshe, “On your way back to Egypt, see [keep in mind] all the wondrous [signs] that I have placed in your hand, and do them before Pharaoh. I will harden his heart, and he will not send the people out.