Midrash su Salmi 97:11

Rabbi Yehudah Bar Simon opened with (Daniel 2:22): "He reveals the deep and secret. He knows what is in the darkness, and the light dwells with Him." "He reveals the deep"--this is Hell, as it says (Proverbs 9:18): "He does not know there are spirits there," and it says (Isaiah 30:33): "deep and large". "And secret"--this is Paradise, as it says (Isaiah 4:6): "for a cover and refuge from storm and rain," and it says (Psalms 31:21): "You hide them in the cover of Your presence." Alternatively, "he reveals the deep and secret"--these are the acts of the wicked, as it says (Isaiah 29:15): "Woe to the ones who seek deep from God to make their counsel secret." "And secret"--these are the acts of the wicked, as the verse states. "He knows what is in the dark"--these are the acts of the wicked, as it says in Isaiah: "Their acts are in the dark." "The light dwells with Him"--these are the acts of the righteous, as it is written (Proverbs 4:18): "The path of the righteous is like the light at dawn," and it says (Psalms 97:11): "Light is sown for the righteous." Rabbi Abba Srungia said: "The light dwells with Him"--this is the Messiah, as it says (Isaiah 60:1): "Arise, shine, for your light has come." Rabbi Yehudah Bar Simon said: From the beginning of the creation of the world, "he revealed the dark and secret". "In the beginning God created the heavens," but it is not explained. Where is it explained? Here (Isaiah 40:22): "He stretches out the heavens like a curtain." "And the land," but it is not explained. Where is it explained? Here (Job 37:6): "For He says to the snow: 'Fall on the earth.'" and (Job 38:38) "When the dust runs into a mass, and the clods cleave together." "And God said: 'Let there be light,'" and it is not explained. Where is it explained? (Psalms 104:2) "You cover Yourself with light like a garment."

R. Nachman b. Isaac said: "I will also remark that not everyone is worthy of obtaining light [of the Torah], and not everyone is worthy to have joy resulting from meritorious deeds. The righteous are deserving of light and the upright of joy, as it is said (Ps. 97, 11) Light is sown for the righteous, and gladness for the upright in heart."

Another interpretation (of I Sam. 2:9): HE SHALL PROTECT THE FEET OF HIS SAINTS. This refers to Jacob, when he set out to go to Haran; for the Holy One said this to him (in Gen. 28:15): SEE, I AM WITH YOU. (Ibid., cont.:) BUT THE WICKED SHALL PERISH IN DARKNESS. This refers to Esau, of whom it is stated (in Job 20:26): UTTER DARKNESS AWAITS HIS TREASURES; < AN UNFANNED FIRE SHALL CONSUME HIM >…. (Obad. 18:) THE HOUSE OF JACOB SHALL BE FIRE … AND THE HOUSE OF ESAU SHALL BE STRAW; < THEY SHALL BURN IT AND CONSUME IT >. When Esau set out to pursue Jacob, it was for ten hours that the Holy One concealed the day and made it evening. Accordingly, it is stated (in Gen. 28:11): WHEN HE CAME ACROSS A CERTAIN PLACE, < HE SPENT THE NIGHT THERE BECAUSE THE SUN HAD SET >. So Esau remained in the darkness and did not know where he was going. Thus it is stated (in I Sam. 2:9): BUT THE WICKED SHALL PERISH IN DARKNESS. Why? (Ibid., cont.:) BECAUSE ONE SHALL NOT PREVAIL BY STRENGTH. The Holy One said to him: Perhaps you think you are mighty! And in the world to come he (the Holy One) is also acting for Israel. Thus it is stated (in Ps. 97:11): LIGHT IS SOWN FOR THE RIGHTEOUS. It also says (in Prov. 4:18f.): BUT THE PATH⁶The Buber text has or (LIGHT) here instead orah (PATH). PATH not only fits better into the context, but also represents the traditional biblical text. OF THE RIGHTEOUS IS LIKE LUMINOUS SPLENDOR…. < BUT THE WAY OF THE WICKED IS LIKE DEEP DARKNESS; THEY DO NOT KNOW ON WHAT THEY WILL STUMBLE >. And if you have some doubts (about such treatment of the wicked), it has already happened in this world (to the Egyptians), as stated (in Exod. 10:23): NOR COULD ONE SEE HIS BROTHER.⁷As most translations recognize, the passage simply means that the Egyptians could not see each other under the plague of darkness; however, the midrash understands the Hebrew more literally as a parallel to Esau not being able to see his brother Jacob.