וַיֵּלְכ֗וּ וַיַּֽעַבְדוּ֙ אֱלֹהִ֣ים אֲחֵרִ֔ים וַיִּֽשְׁתַּחֲוּ֖וּ לָהֶ֑ם אֱלֹהִים֙ אֲשֶׁ֣ר לֹֽא־יְדָע֔וּם וְלֹ֥א חָלַ֖ק לָהֶֽם׃
און זײ זענען געגאַנגען און האָבן געדינט פֿרעמדע געטער, און זיך געבוקט צו זײ, געטער װאָס זײ האָבן זײ ניט געקענט, און װאָס ער האָט זײ ניט אײַנגעטײלט.
Sifrei Devarim
R. Yossi Haglili says: Because it is written (Ibid. 4:19) ("the sun and the moon, etc.) which the L-rd your G-d bequeathed to all the peoples," I might think that He bequeathed them to the nations (to serve them), it is, therefore written (Ibid. 29:25) "gods which they did not know and which He did not bequeath to them (to serve them)."