GAL 2:16

16 Yet we have da'as that a man cannot be YITZDAK IM HASHEM[(be justified with G-d)] by [depending on] the ma'asim of Gezetz [(Law)], but through emunah in Rebbe, Melech HaMoshiach Yehoshua. And we have come to have bitachon in Rebbe, Melech HaMoshiach Yehoshua, that we can be YITZDAK IM HASHEM[(be justified with G-d)] by emunah in Moshiach and not by ma'asim, because by taryag mitzvot KOL CHAI LO YITZDAK[(all living shall not be justified)].