1 Corinthians 12:13, 25-26

Some of us are Jews, and some are Greeks. Some of us are slaves, and some are free. But we were all baptized into one body through one Spirit. And we were all made to share in the one Spirit.

so our body would not be divided. God wanted the different parts to care the same for each other. If one part of the body suffers, all the other parts suffer with it. Or if one part of our body is honored, all the other parts share its honor.