אֵ֛יךְ נָפַ֥לְתָּ מִשָּׁמַ֖יִם הֵילֵ֣ל בֶּן־שָׁ֑חַר נִגְדַּ֣עְתָּ לָאָ֔רֶץ חוֹלֵ֖שׁ עַל־גּוֹיִֽם׃
Paanong nahulog ka mula sa langit, O nagniningning na tala sa umaga, anak ng bukang-liwayway! Pinutol ka at ibinagsak sa lupa, ikaw na nagpapalabunutan sa mga bansa!
Rashi
Lucifer, the morning star This is Venus, which gives light as the morning star, הֵילֵל being derived from יהל, to shed light. This is the lamentation over the heavenly prince of Babylon, who will fall from heaven.
Ibn Ezra
הילל Very probably Lucifer, as בן שחר morning star proves. It is seen on certain days a little before dawn, and of all the host of heaven there is no star that shines with such brilliancy as this; its name is therefore הילל (lit., splendour); comp. יחלו They shall cause to shine (13:11).
Rashi
You have been cut down to earth You, Nebuchadnezzar, who would cast lots on nations. You would cast lots on them, on the kings, who of them would serve you on such and such a day, and who on such and such a day. Our Rabbis, however, expounded this to mean that he would cast lots on the kings for purposes of pederasty.