2 Corinthians 10:16
To preach the gospel in the regions beyond you, and not to boast in another man’s line of things made ready to our hand.
Cross-reference
2 Corinthians 10:13
Parallel
2 Corinthians 10:13 defines Paul's God-given measure to reach Corinth; here he expands that to territory beyond without overstepping.
Romans 15:24–28
Historical context
Romans 15:24-28 reveals Paul's plan to preach in Spain—regions beyond his current work, exactly the ambition he states here.
Romans 1:15
Parallel
Romans 1:15 shows Paul eager to preach the gospel to Rome, paralleling his desire here to reach regions beyond Corinth.