Introduction
One verse before celebrating God's kindness in leading us to repentance (v. 4), Paul confronts the religious moralist who condemns others while practicing the same things and somehow expects exemption.
Historical Context
Paul has just listed the sins of pagans in chapter 1. Now he turns the spotlight on Jewish (and any) moralists who feel safe because they criticize what they secretly do.
Original Language Insights
'Thinkest thou' (logizomai) — to reckon, calculate. The moralist has done the math and concluded that judging others discounts his own account. Paul says: the math is wrong.
Theological Significance
Moral knowledge without moral obedience increases guilt rather than removes it. Knowing what is right and condemning others for failing leaves the hypocrite more accountable, not less.
Practical Application
Where are you sharpest in criticism of others? That is often the very area where you most need self-examination.