וְהָיָ֨ה לָהֶ֜ם דְּבַר־יְהוָ֗ה צַ֣ו לָצָ֞ו צַ֤ו לָצָו֙ קַ֤ו לָקָו֙ קַ֣ו לָקָ֔ו זְעֵ֥יר שָׁ֖ם זְעֵ֣יר שָׁ֑ם לְמַ֨עַן יֵלְכ֜וּ וְכָשְׁל֤וּ אָחוֹר֙ וְנִשְׁבָּ֔רוּ וְנוֹקְשׁ֖וּ וְנִלְכָּֽדוּ׃ (פ)
And so the word of the LORD is unto them Precept by precept, precept by precept, Line by line, line by line; Here a little, there a little; That they may go, and fall backward, and be broken, And snared, and taken.
Read kabbalistic (mystical) interpretation of Isaiah 28:13: and classical mystical sources.