לָ֣מָּה תַתְעֵ֤נוּ יְהוָה֙ מִדְּרָכֶ֔יךָ תַּקְשִׁ֥יחַ לִבֵּ֖נוּ מִיִּרְאָתֶ֑ךָ שׁ֚וּב לְמַ֣עַן עֲבָדֶ֔יךָ שִׁבְטֵ֖י נַחֲלָתֶֽךָ׃
O LORD, why dost Thou make us to err from Thy ways, And hardenest our heart from Thy fear? Return for Thy servants’sake, The tribes of Thine inheritance.
Read kabbalistic (mystical) interpretation of Isaiah 63:17: and classical mystical sources.