good in a way that benefits whoever meets it: kind toward people, easy to bear, mellow rather than harsh
This word began as a practical term. It comes from a verb meaning "to use," so its oldest force is "fit for use, serviceable, good of its kind." Greek writers then stretched it in two directions: to describe a person of sound character, and to describe someone who treats others gently. All of those shades are alive in the New Testament, and what holds them together is the point of view. The word does not rate something against an abstract standard. It rates it by how it treats whoever has to deal with it.
That is why one small word can cover such different subjects:
- a yoke that fits well and does not chafe (Matthew 11:30)
- wine that has aged until it is smooth on the tongue (Luke 5:39)
- habits and company that leave a person's character sound (1 Corinthians 15:33)
- God, who stays good even toward people who are ungrateful and bad (Luke 6:35)
The word can also stand on its own as a name for the quality. In Romans 2:4 Paul writes of "the kindness of God" that leads a person toward a change of heart, using this plain word where one clause earlier he had used the fuller word for kindness (χρηστότης). One more piece of background is worth knowing: in the Greek of the first century this word and the title "Christ" sounded almost the same, which is why outsiders sometimes wrote the name of Christians as though it came from the word for kindness.