And the LORD said unto Moses, When thou goest to return into Egypt, see that thou do all those wonders before Pharaoh, which I have put in thine hand: but I will harden his heart, that he shall not let the people go.

וַיֹּ֣אמֶר יְהוָה֮ אֶל מֹשֶׁה֒ בְּלֶכְתְּךָ֙ לָשׁ֣וּב מִצְרַ֔יְמָה רְאֵ֗ה כָּל הַמֹּֽפְתִים֙ אֲשֶׁר שַׂ֣מְתִּי בְיָדֶ֔ךָ וַעֲשִׂיתָ֖ם לִפְנֵ֣י פַרְעֹ֑ה וַאֲנִי֙ אֲחַזֵּ֣ק אֶת לִבּ֔וֹ וְלֹ֥א יְשַׁלַּ֖ח אֶת הָעָֽם