Zephaniah 1:5 Halakhah

וְאֶת־הַמִּשְׁתַּחֲוִ֥ים עַל־הַגַּגּ֖וֹת לִצְבָ֣א הַשָּׁמָ֑יִם וְאֶת־הַמִּֽשְׁתַּחֲוִים֙ הַנִּשְׁבָּעִ֣ים לַֽיהוָ֔ה וְהַנִּשְׁבָּעִ֖ים בְּמַלְכָּֽם׃

And them that worship the host of heaven upon the housetops; And them that worship, that swear to the LORD And swear by Malcam;