Duties of the private life, viz. chastity and contentment.
Related Commentaries of Hebrews 13:4
Hebrews 13:4-6
4 Marriage is honourable in all, and the bed undefiled: but whoremongers and adulterers God will judge.
5 Let your conversation be without covetousness; and be content with such things as ye have: for he hath said, I will never leave thee, nor forsake thee.
6 So that we may boldly say, The Lord is my helper, and I will not fear what man shall do unto me.