תָּמִ֤ים אַתָּה֙ בִּדְרָכֶ֔יךָ מִיּ֖וֹם הִבָּֽרְאָ֑ךְ עַד־נִמְצָ֥א עַוְלָ֖תָה בָּֽךְ׃
Thou wast perfect in thy ways from the day that thou wast created, till unrighteousness was found in thee.
Read kabbalistic (mystical) interpretation of Ezekiel 28:15: and classical mystical sources.