Part 2 — CHAPTER I. DIRECTIONS ABOUT MARRIAGE; FOR CHOICE AND CONTRACT. (continued 2)
Reading edition
16. It must not be forgotten here, that if men trust to marriage itself alone as the cure of their lust, without other means, such violent lusts as nothing else will cure, may possibly be much uncured afterwards. For adulterers are as violent in their lusts as the unmarried, and ofttimes find it as hard to restrain them. And therefore the married, as well as others, have need to be careful to overcome their lust. And the rather because it is in them a double sin.
17. But yet when all other means do fail, marriage is God's appointed means, to quench those flames from which men's vows cannot, in cases of true necessity, disoblige them.