Romans 5:1

1 Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ,

The theme of chapter 5 is “through Christ.”

Therefore — The subject is linked back to chapter 4.

Benefit of justification — peace with God (not “peace of God”). It’s a state, not a feeling. Sinners are at war with God, the justified are at peace.

Jesus Christ is our mediator and our peace.