ישעיהו נח:א פירוש: רש״י ואבן עזרא

and relate to My people their transgression These are the Torah scholars, whose every inadvertent sin is counted as a transgression, for an error in study is accounted as an intentional sin.

Cry aloud. The prophet is addressed by God. אל תחשך Spare not the crying; the objective case must be supplied, because חשך is a transitive verb.

and to the house of Jacob their sins These are the ignorant people, whose willful sins, are accounted inadvertent.