The body is a unit, though it is made up of many parts; and though all its parts are many, they form one body.1 So it is with Christ.2
References for 1 Corinthians 12:12
For we were all baptized3 by one Spirit4 into one body--whether Jews or Greeks, slave or free5--and we were all given the one Spirit to drink.6
References for 1 Corinthians 12:13
Now the body is not made up of one part but of many.7
References for 1 Corinthians 12:14
If the foot should say, "Because I am not a hand, I do not belong to the body," it would not for that reason cease to be part of the body.
And if the ear should say, "Because I am not an eye, I do not belong to the body," it would not for that reason cease to be part of the body.
If the whole body were an eye, where would the sense of hearing be? If the whole body were an ear, where would the sense of smell be?
But in fact God has arranged8 the parts in the body, every one of them, just as he wanted them to be.9
References for 1 Corinthians 12:18