Chapter 18 — Part I — Matrimony
Section 362. Q. Whence does it appear that Matrimony is a Sacrament? A. From the following words of the Apostle Paul: A man shall leave his father and mother, and shall be joined unto his wife, and they two shall be one flesh. This Sacrament is great: but I speak concerning Christ and the Church. Eph. v. 31, 32.