The Greek word “aphron”

Found in Lk. 11:40; 12:20; Rom. 2:20; 1 Cor. 15:36; 2 Cor. 11:16, 19; 12:6, 11; Eph. 5:17; 1 Pet. 2:15, the Greek adjective “aphron” meant “rash,” “foolish,” “inconsiderate.”

When Jesus interacted with people who were inwardly corrupt but outwardly righteous He described them as “foolish” (Lk. 11:40). The rich farmer who felt secure in his wealth was “foolish.” God’s people regarded themselves as correctors of the “foolish” (Rom. 2:20). Some have acted foolishly when it comes to believing in a future resurrection (1 Cor. 15:36). God does not want His people to be “unwise” (Eph. 5:17). Living the Christian life can help silence “foolish” men (1 Pet. 2:15).