This chapter gives instruction regarding spiritual gifts. The Corinthians had been idolaters, and the apostle wanted them to understand that only by the Spirit could they truly call Jesus, Lord.
There were many different gifts in the assembly and differences of administration and operations, but the same Lord directs and is over all things. The gifts in any assembly are for profit in wisdom, knowledge, faith, healing, miracles, prophecy, discerning of spirits, tongues, and interpretation of tongues. The Spirit divides to each as He pleases.
For even as the body is many, still all are one body, "so also is Christ."
"For by one Spirit are we all baptized into one body, whether we be Jews or Gentiles, whether we be bond or free; and have been all made to drink into one Spirit."
The body is one. All the members are necessary. The part that lacks has more honor, so that the members may have the same care one for the other.
There are gifts of apostles, prophets, teachers, miracles, powers, healings, helps, governments, and tongues. We should desire the greater gifts, yet there is a more excellent way. Tongues are a sign to the world, not His saints. They now have ceased.