Chapter 11 — Part I — Article IX (Of the Church)
Section 275. Q. What does the Creed teach us, when it calls the Church Apostolic? A. It teaches us to hold fast the Apostolical doctrine and tradition, and eschew such doctrine and such teachers as are not warranted by the doctrine of the Apostles. The Apostle Paul says: Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word or our epistle. 2 Thess. ii. 15. A man that is a heretic after the first and second admonition reject. Titus iii. 10. For there are many unruly, vain talkers and deceivers, especially they of the circumcision, whose mouths must be stopped; who subvert whole houses, teaching things which they ought not, for filthy lucre's sake. Titus i. 10, 11. But if thy brother neglect to hear the Church, let him be to thee as a heathen man and a publican. Matt. xviii. 17.