Reciprocity in the Bible

General scriptures concerning

• Romans 15:27 It hath pleased them verily; and their debtors they are. For if the Gentiles have been made partakers of their spiritual things, their duty is also to minister unto them in carnal things.
• 1 Corinthians 9:11 If we have sown unto you spiritual things, is it a great thing if we shall reap your carnal things?
• Galatians 6:6 Let him that is taught in the word communicate unto him that teacheth in all good things.