A froward heart shall depart from me: I will not know a wicked person.
A froward heart shall depart from me - (Psalms 18:26.) So Solomon, David's son, writes in Proverbs 11:20; Proverbs 17:20.
I will not know a wicked (person) - rather as the parallel clause requires, 'I will not know a wicked thing' (Psalms 34:16; Psalms 52:3) So far he has spoken only of sin: not until the second part of the strophe does he pass on to sinners.