John Calvin Commentary 1 Corinthians 12:23

"and those [parts] of the body, which we think to be less honorable, upon these we bestow more abundant honor; and our uncomely [parts] have more abundant comeliness;" — 1 Corinthians 12:23 (ASV)

Which are less honorable. Here we have a second argument — that the dishonor of one member leads to the common disgrace of the whole body, as is evident from the care we take to cover the parts that are less honorable. “Those parts that are comely,” says he, “do not require added ornament; but the parts that involve shame, or are less comely, are cared for by us with greater concern. Why is this? Because their shame would be the common disgrace of the whole body.” To invest with honor is to put on a covering for the sake of ornament, so that those members may be honorably concealed, which would involve shame if uncovered.