Commentaries:
Jamieson, Fausset, and Brown
Brethren—an appellation calculated to conciliate their favorable reception of his exhortation.
children in understanding—as preference of gifts abused to nonedification would make you (compare I Corinthians 3:1; Matthew 10:16; Romans 16:19; Ephesians 4:14). The Greek for "understanding" expresses the will of one's spirit, Romans 8:6 (it is not found elsewhere); as the "heart" is the will of the "soul." The same Greek is used for "minded" in Romans 8:6.
men—full-grown. Be childlike, not childish.
Other Jamieson, Fausset, and Brown entries containing 1 Corinthians 14:20:
Isaiah 46:8
Matthew 11:25
1 Corinthians 2:6-7
1 Corinthians 13:11
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