John Calvin Commentary 1 Corinthians 12:18

"But now hath God set the members each one of them in the body, even as it pleased him." — 1 Corinthians 12:18 (ASV)

But now God hath placed. Here we have another argument, taken from the appointment of God. “It has pleased God that the body should consist of various members, and that the members should be endowed with various offices and gifts. That member, therefore, which will not rest satisfied with its own station, will wage war with God after the manner of the giants. Let us, therefore, be subject to the arrangement which God has appointed, that we may not, to no purpose, resist his will.”