What if your hand says that there is no need of a leg? This question sounds absurd at various levels because it is impossible for a hand to function well if there’s no leg. Every part of a human body is interdependent with each other. Similarly, in this passage the Apostle Paul emphasizes the importance of preserving the diversity of the church because that’s how God intended His church to be.
For any mission to be accomplished, there needs to be peace and unity among a specific group standing for a cause. If there is no unity, the group falls apart. The disunity also weakens the individual to fulfill the mission so it is impossible to accomplish it alone. We’re hard wired to work and live in the context of community. How can such a unity be established among a group of people in the church who come from various backgrounds? This passage gives us insights into that tension.