Midrasch zu Schir haSchirim 1:1

“I am a rose of Sharon, a lily of the valleys” (Song of Songs 2:1).
“I am a rose [ḥavatzelet] of Sharon.” The congregation of Israel said: I am as I am, yet I am beloved [ḥaviva]. It is I whom the Holy One blessed be He loved me more than seventy nations. “A rose [ḥavatzelet] of Sharon,” I made Him shelter [tzel] by means of Betzalel, as it is written: “Betzalel crafted the Ark” (Exodus 37:1). “Of Sharon,” as I recited song [shira] before Him by means of Moses, as it is written: “Then Moses and the children of Israel sang” (Exodus 15:1).
Another matter, “I am a rose of Sharon.” The congregation of Israel said: I am as I am, yet I am beloved. It is I who was shrouded in the shadow of Egypt, but the Holy One blessed be He brought me quickly to Rameses. I sprouted good deeds like a lily, and I recited a song before Him, as it is stated: “The song will be for you like the night of the consecration of the festival” (Isaiah 30:29).¹The song after the fall of Sennacherib will be like the Hallel that they recited in Egypt on the night before they left.
Another matter, “I am a rose of Sharon.” The congregation of Israel said: I am as I am, yet I am beloved. It is I who was shrouded in the shadow of the sea,²I was in danger when Pharaoh was pursuing me. but I quickly sprouted good deeds like a lily, and I pointed to Him with my finger [and pronounced that He is] my Master, as it is stated: “This is my God and I will exalt Him” (Exodus 15:2).
Another matter, “I am a rose of Sharon.” I am as I am, yet I am beloved. It is I who was shrouded in the shadow of Sinai.³God suspended the mountain over the Israelites, threatening to obliterate them if they refused to accept the Torah (see Shabbat 88a). I quickly blossomed good deeds with my hand and my heart, and I said before Him: “Everything that the Lord has spoken we will perform and we will heed” (Exodus 24:7).
Another matter, “I am a rose of Sharon.” I am as I am, yet I am beloved. It is I who was shrouded and trampled in the shadow of kingdoms. Tomorrow, when the Holy One blessed be He redeems me from the shadow of the kingdoms, I will blossom like a lily, and I will recite a new song before Him, as it is stated: “A psalm. Sing to the Lord a new song, for He has performed wonders; His right hand and His holy arm have wrought salvation for Him” (Psalms 98:1).

“The Song of Songs that is Solomon’s” (Song of Songs 1:1).
Prologue of the Sages. “The Song of Songs,” that is what [the verse] written by Solomon states: “Have you seen a man diligent in his labor? He will stand before kings, he will not stand before dark ones” (Proverbs 22:29). “Have you seen a man diligent in his labor” – This is Joseph, in whose regard it is written: “He came into the house to perform his labor [and none of the men of the house were there, in the house]” (Genesis 39:11). Rabbi Yehuda and Rabbi Neḥemya, Rabbi Yehuda says: It was a day of disgrace and manure,¹The midrash is referring here to Egyptian ritual worship, and uses these words to describe it in order to demean such idolatry. and a day of theater. Rabbi Neḥemya says it was a day of theater in honor of the Nile. Everyone went to see, and he entered to perform his labor to calculate the accounts of his master.
Rabbi Pinḥas says in the name of Rabbi Shmuel bar Abba: Anyone who serves his master properly is set free. From where do we derive this? From Joseph. Because he served his master properly, he was set free. Therefore, “he will stand before kings,” this is Pharaoh, as it is stated: “Pharaoh sent and summoned Joseph, and they rushed him from the dungeon” (Genesis 41:14). “He will not stand before dark ones,” this is Potiphar, as the Holy One blessed be He blinded his eyes and castrated him.

Another matter, “have you seen a man diligent…,” this is Moses in the labor of [constructing] the Tabernacle; therefore, “he will stand before kings,” this is Pharaoh, as it is stated “Arise early in the morning and stand before Pharaoh” (Exodus 8:16). “He will not stand before dark ones,” this is Yitro. Rabbi Neḥemya said: You have rendered the sacred profane; rather, “he will stand before kings,” this is the King of kings, the Holy One blessed be He, as it is stated: “He was there with the Lord forty days” (Exodus 34:28). “He will not stand before dark ones,” this is Pharaoh, as it is stated: “There was a thick darkness [in the entire land of Egypt]” (Exodus 10:22).²Pharaoh is referred to as dark because his land became dark. Alternatively, the reference is due to the fact that Moses announced that he would no longer come to see Pharaoh after the plague of darkness (see Exodus 10:29).