Reference for Psalms 18:22

כִּֽי־שָׁ֭מַרְתִּי דַּרְכֵ֣י יְהוָ֑ה וְלֹֽא־רָ֝שַׁ֗עְתִּי מֵאֱלֹהָֽי׃

For I have kept the ways of the LORD, and have not wickedly departed from my God.

ספר השרשים