[Those] who are not secure in Christ cast about for spiritual life preservers with which to support their confidence, and in their frantic search they cling not only to the shreds of ability and righteousness they find in themselves, but they fix upon their race, their membership in a party, their familiar social and ecclesiastical patterns, and their culture as means of self-recommendation. The culture is put on as though it were armor against self-doubt, but it becomes a mental straitjacket which cleaves to the flesh and can never be removed except through comprehensive faith in the saving work of Christ … Christians who are no longer sure [or nominal Christians who never were sure] that God loves and accepts them in Jesus, apart from their present spiritual achievements, are subconsciously radically insecure persons. … Their insecurity shows itself in pride, a fierce defensive assertion of their own righteousness and defensive criticism of others. They come naturally to hate other cultural styles and other races in order to bolster their own security and discharge their suppressed anger. … Once faith is exercised, a Christian is free … to wear his culture like a comfortable suit of clothes. He can shift to other cultural clothing temporarily if he wishes to do so, as Paul suggest in 1 Corinthians 9:19-23, and he is released to admire and appreciate the differing expressions of Christ shining out through other cultures.
— Richard Lovelace