As also Dovid HaMelech speaks of the me'ushar (blessedness) of the person whom Hashem reckons to be YITZDAK IM HASHEM (justified with G-d) without dependence on [zechusearning] ma'asim (works) [T.N. with merit (zechus) viewed as "pay" earned for "work" rendered--see Ro 4:4]: