Rom 5:1-5
"Therefore, since we have been justified by faith, we have peace with God... And not only that, but we also glory in tribulations, knowing that tribulation produces endurance, and endurance produces character, and character produces hope."
Five fruits of justification: (1) peace with God; (2) access to grace; (3) hope of glory; (4) glory in tribulations; (5) God’s love poured out by the Spirit. The chain tribulation → endurance (hypomone) → character (dokime) → hope is the divine pedagogy of suffering.
Rom 5:8
"But God shows his love for us in that while we were still sinners, Christ died for us."
The proof of God’s love is historical and specific: Christ died for the ungodly, for sinners, for enemies. The a fortiori logic: if God loved us so much when we were enemies, how much more will he save us now that we are children?