ישעיהו נז:י פירוש: רש״י ואבן עזרא

With the length of your way you became wearied You engaged in your necessities, in the filling of your lust, to increase your wealth.

In the greatness of thy ways, which thou didst frequent, and in which thou hast wearied thyself, without saying: נואש there is no hope, my heart is despairing;¹⁵I. E. supplies the masculine noun לבי, my heart, as the subject to נואש. (comp. שאול ונואש ממני and Saul shall despair of me (1 Sam. 27:2)); thou thoughtest that thy exertion might still be of some use.

you did not say, “Despair.” I will despair of these and I will no longer care to engage in them, but I will pay my attention to Torah and precepts.