הֵ֣ן כֻּלָּ֔ם אָ֥וֶן אֶ֖פֶס מַעֲשֵׂיהֶ֑ם ר֥וּחַ וָתֹ֖הוּ נִסְכֵּיהֶֽם׃ (פ)
Behold, all of them, Their works are vanity and nought; Their molten images are wind and confusion.
Read halakhic rulings (Jewish law) on Isaiah 41:29: and classical halakhic sources.