Nay, much more those members of the body, which seem to be more feeble, are necessary:
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Ambrosiaster
AD 400
No matter how elevated a person may be, if he has no one under him, his rank is worthless. The greatest emperor still needs an army. Commentary on Paul’s Epistles.
Nay, much more those members of the body, which seem to be more feeble, are necessary. S. Chrysostom and Theophylact think that this refers to the eyes, which are small and delicate but yet most necessary. But as the eyes have been included in the preceding verse amongst the nobler members which govern the body, it is better to refer it, as others do, to the internal parts of the body. For the belly is as the kitchen or the caterer for the whole of the body, and cooks and distributes the food for every part, and therefore is essential to the life of the body.