That we he no more children, tossed to and fro and carried about with every wind of teaching. The apostle goes back to illustrate in another way the purpose of the ministry; it is designed to remedy childish fickleness and the causes that lead to it.
The ignorant and inexperienced lie at the mercy of abler persons, and, when there is no regular ministry provided by Christ, are liable to be swept along by any plausible person that professes to be a Christian teacher, and such persons are often very dangerous, working by the sleight of men, i.
e. the cunning legerdemain by which the teachings of men—teachings devised by the hearts of men—are made to appear to the uninitiated the same as Christ's teaching. In craftiness, tending to the scheme of error.
Such teachers employ crafty methods, apparently harmless, but tending to further the method or scheme of error. The strong language here used corresponds with that in which, at Miletus, the apostle warned the elders of Ephesus of the "grievous wolves" that were to come in among them, and of the men "speaking perverse things" that were to arise among themselves, not sparing the flock (Acts 20:29, Acts 20:30).