||But once again, God made Pharaoh obstinate, and he would not let the Israelites leave.
Vayechazek Adonay et-lev Par'oh velo shilach et-beney Yisra'el.
||God said to Moses, 'Reach out toward the sky with your hand, and there will be darkness in Egypt. The darkness will be palpable.'
Vayomer Adonay el-Moshe neteh yadecha al-hashamayim vyhi choshech al-erets Mitsrayim veyamesh choshech.
Sh'moth Rabbah 14:1; Rashi; Ibn Ezra; Ramban). Alternatively, 'the darkness was opaque' (Radak, Sherashim; Septuagint; cf. Wisdom of Solomon 17:5); or 'intense darkness' (Rashi; Rashbam).