Chapter 21 discusses the importance of honesty in the lives of the Wise and Wealthy. Ill gotten wealth will quickly dissipate unless the wicked ways are amended. Justice and Prudence lead to peace in the community and in the home. Both qualities are prized and sought after by Wise men.
Those who wish for a good life will behave intentionally though the conservation and re-investment of resources. The Wise man will build stores of Wine and Oil. The Foolish will consume all they have without thought or preparation for the future. Saving and investing is a strategy the Wise employ to ensure comfort in life and the preservation of the legacy of wealth and wisdom.
Verse 9: Better to live on a corner of the roof than share a house with a quarrelsome spouse.
Verse 19: Better to live in a desert than with a quarrelsome and angry spouse.
The preceding verses discuss the importance of Peace and Harmony in the home. In all things the Wise man will exhibit patience and understanding. BUT. At some point. The Wise man says 'enough is enough.' The desert and corner of the roof can be considered uncomfortable places to live...but far more accommodating than a home filled with continual discord, dishonesty, and anger.
Tony Robbins tells us: "We get what we tolerate" Solomon tells us: Patience is one of the most valuable of Virtues. The Preacher tells us: "it is Not your job to Redeem."