Vs 5: A false witness will not go unpunished, and he who speaks lies will not escape.
I like this verse because apart from the fact that it should keep me from lying, it also comforts me to know that those who have lied to me or about me will not escape the consequences.
Just to reiterate:
Vs 9: A false witness will not go unpunished, and he who speaks lies shall perish.
Vs 13-14: 13 A foolish son is the ruin of his father, and the contentions of a wife are a continual dripping.
14 Houses and riches are an inheritance from fathers, but a prudent wife is from the Lord.
No really - me - can't be! Often, in anger I have gone to the word looking for correction for my husband - yes, him - and what does the Lord bring to the fore - yes, you got it - my behaviour!
Vs 17: He who has pity on the poor lends to the Lord, and He will pay back what he has given.
You can't out give God! And God owes no man!
Vs 21: There are many plans in a man's heart, nevertheless the Lord's council - that will stand.
This is an encouragement to cling to God's will or seek His will in your life, as that is what will last.
Vs 27: Cease listening to instruction, my son, and you will stray from the words of knowledge.
This is an exhortation to remain in the word - constantly seek the Lord and His word. It is definitely true of me that if I ease off on my quiet times or skip church one time too many, I can feel the slide backwards. My temper gets frayed quicker, more things hassle me, etc.
Again, Proverbs has provided much guidance.