Question: Why is it sin if you are not serving? What is serving? Answer: The Bible says that at the time of salvation, every Christian is specially gifted by the Spirit, for the purpose of serving other Christians.  That is the clear meaning of 1 Corinthians 12:7: but to each one is given the manifestation of the Spirit for the common good. All Christians have been gifted by God for the good of others.  1 …