It seems to me Paul is justifying God's condemnation of good people and religious people. More and more it seems to be God-focused. Condemnation and judgment demand that we lift our eyes from ourselves to God.
This chapter ties a noose for those who posture themselves as teachers without being obey-ers. The law is of no benefit if it is not kept. External things (circumcision and law keeping) don't matter if your heart is not right before God.
The best sentence is Romans 2:4, the kindness of God leads to repentance. This comes on the heals of his statement about presuming on God's kindness. God is kind so that we repent not so that we can take advantage of it.