Explanation: when churches use worldly principles to reach the ‘unchurched’ they are inviting spiritual malnutrition among Christians because these principles overwhelmingly address the perceived needs of the perishing, rather than conducting the fullness of worship for those who are being saved. “For the word of the cross is folly to those who are perishing, but to us who are being saved it is the power of God.” (1 Corinthians 1:18 ESV)
If we cater church services for the wrong audience – under the guise of church planting or evangelism – the folly of the cross will be removed so as to not offend the perishing. Whereas, where the Word of God is preached faithfully, those who are being saved, will be, without the use of vain principles. “For consider your calling, brothers: not many of you were wise according to worldly standards, not many were powerful, not many were of noble birth. But God chose what is foolish in the world to shame the wise; God chose what is weak in the world to shame the strong; God chose what is low and despised in the world, even things that are not, to bring to nothing things that are, so that no human being might boast in the presence of God.” (1 Corinthians 1:26–29 ESV) This foolishness includes the methods of Christ, the message of Christ, and the means of Christ (his preachers).