The insistence of scripture that a man and a woman, whenever they took to the marital bed, were joined as Christ and his Church were joined, becoming one flesh, gave to both a rare dignity. If the wife was instructed to submit to her husband, then so equally was the husband instructed to be faithful to his wife. Here, by the standards of the age into which Christianity had been born, was an obligation that demanded an almost heroic degree of self-denial.