ישעיהו נו:ג פירוש: רש״י ואבן עזרא

“The Lord will surely separate me from His people,” Why should I become converted? Will not the Holy One, blessed be He, separate me from His people when He pays their reward.

The son of the stranger. The true proselytes.

Let not the eunnuch say Why should I better my ways and my deeds? I am like a withered tree, for lack of remembrance.