צפו [צֹפָ֞יו] עִוְרִ֤ים כֻּלָּם֙ לֹ֣א יָדָ֔עוּ כֻּלָּם֙ כְּלָבִ֣ים אִלְּמִ֔ים לֹ֥א יוּכְל֖וּ לִנְבֹּ֑חַ הֹזִים֙ שֹֽׁכְבִ֔ים אֹהֲבֵ֖י לָנֽוּם׃
His watchmen are all blind, Without knowledge; They are all dumb dogs, They cannot bark; Raving, lying down, loving to slumber.
Read midrashic interpretation of Isaiah 56:10: and classical rabbinic exegesis.