1 Corinthians 9:11

If we have sown unto you spiritual things, is it a great thing if we shall reap your carnal things?

Cross-reference

Matthew 10:10 records Jesus' teaching that a worker deserves his food, directly supporting Paul's argument.

Romans 15:27 expresses the same principle: spiritual blessings obligate material support in return.

Galatians 6:6 instructs that those taught should share good things with their teacher—direct parallel to Paul's point.

Philippians 4:14 praises the Philippians for sharing in Paul's distress through material gifts—a positive example of believers supporting Paul's ministry, which he had the right to receive.

2 Corinthians 6:4 lists Paul's endurance in needs—illustrating the hardships he endures instead of using his right to support, a parallel of his sacrifice.