גַּל־עֵינַ֥י וְאַבִּ֑יטָה נִ֝פְלָא֗וֹת מִתּוֹרָתֶֽךָ׃
Open Thou mine eyes, that I may behold wondrous things out of Thy law.
Rashi on Psalms
hidden things from Your Torah Hidden things in it, which are not explained therein.
Rashi on Psalms
(from Your Torah) Wonders from the explanations of your Torah which are not explained therein.