Ecclesiastes 7:19

¹⁷ Do not be excessively wicked, and do not be a fool. Why should you die before your time?

¹⁸ It is good to grasp the one and not let the other slip from your hand. For he who fears God will follow both warnings.

Wisdom makes the wise man stronger than ten rulers in a city.

²⁰ Surely there is no righteous man on earth who does good and never sins.

²¹ Do not pay attention to every word that is spoken, or you may hear your servant cursing you.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: Wisdom makes the wise man stronger than ten rulers in a city.
KJV: Wisdom strengtheneth the wise more than ten mighty men which are in the city.
WEB: Wisdom is a strength to the wise man more than ten rulers who are in a city.
ASV: Wisdom is a strength to the wise man more than ten rulers that are in a city.
DARBY: Wisdom strengtheneth the wise more than ten mighty [men] that are in a city.
BLB: Wisdom gives more strength to the wise one than ten rulers who are in a city.

ÅB: Visdommen er et sterkere vern for den vise enn ti mektige menn i en by;
OTB: Visdom gir styrke til en vis person mer enn ti herskere i en by.
B1930: Visdommen er et sterkere vern for den vise enn ti mektige menn i en by;

Proverbs 21:22
A wise man scales the city of the mighty and pulls down the stronghold in which they trust.
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Colossians 1:9–11
For this reason, since the day we heard about you, we have not stopped praying for you and asking God to fill you with the knowledge of His will in all spiritual wisdom and understanding,
Read in context
Ecclesiastes 9:13–18
I have also seen this wisdom under the sun, and it was great to me:
Read in context
Proverbs 24:5
A wise man is strong, and a man of knowledge enhances his strength.
Read in context
2 Samuel 20:16–22
a wise woman called out from the city, “Listen! Listen! Please tell Joab to come here so that I may speak with him.”
Read in context