In Romans 5:20, sin's increase leads to abounding grace, reinforcing the theme of God's love responding to sinners—complementary to Christ's death.

Romans 5:6 directly parallels this: Christ died for the ungodly while we were powerless — the same 'while we were sinners' logic.

Romans 8:39 assures that nothing can separate us from the love demonstrated here — the same love in Christ Jesus.

Isaiah 53:6 prophesies the Lord laying our iniquity on the suffering servant, directly fulfilled in Christ dying for our sins.

1 John 4:10 says God loved us and sent his Son as atoning sacrifice, a direct parallel to Christ dying for sinners.

1 John 4:9 says God showed his love by sending his Son so we might live, echoing the love demonstrated while we were sinners.

1 John 3:16 defines love as Christ laying down his life for us, directly mirroring the demonstration of love in Romans 5:8.

1 Peter 3:18 states Christ suffered once for sins, the righteous for the unrighteous, exactly paralleling the substitutionary death in Romans 5:8.

Ephesians 1:6-8 elaborates on the riches of grace and redemption through Christ's blood, echoing the demonstration of love in Christ's death for sinners.

In John 15:13, Jesus says the greatest love is laying down one's life for friends—directly exemplified by Christ dying for us in Romans 5:8.

2 Corinthians 8:9 mirrors this: Christ became poor for our sake, just as here he died for us — both show sacrificial love.

Ephesians 2:4 directly parallels God's great love as the motive — same emphasis on love, though without specifying Christ's death.

Ephesians 2:5 expands that love: God made us alive with Christ even when dead in transgressions — very similar to 'while we were sinners'.

1 Timothy 1:15 similarly declares Christ came to save sinners, affirming that Christ died for the ungodly—the very love demonstrated in Romans 5:8.

Hebrews 2:9 says Jesus tasted death for everyone, echoing that Christ's death was for all sinners—the demonstration of God's love.

Hebrews 9:15 explains Christ's death as a ransom to set sinners free, revealing the purpose behind his dying for us.

John 3:16 echoes this same demonstration of God's love by giving his Son — the ultimate sacrifice for the world's salvation.

In Luke 6:35, God is kind to the ungrateful and wicked — the same undeserving recipients of Christ's sacrifice in Romans 5:8.

Genesis 22:2, with Abraham commanded to sacrifice his only son Isaac, typologically prefigures God the Father offering his only Son for sinners.

Ephesians 2:7 shows the future display of grace's riches as the purpose of God's kindness in Christ, connected to the love shown at the cross.

1 Timothy 1:16 cites Paul as an example of Christ's immense patience toward the worst sinner, reflecting the love for sinners in Christ's death.