charis

This is the heart of the word and where most of its New Testament uses fall. At its core it names a favorable disposition: one person, usually the greater or wealthier, looks kindly on another and acts for their good. In the everyday world of the first century this was the language of the public benefactor and the king who showered cities and people with gifts, so the word never floated free of real relationships. It is the word for finding favor before God or a ruler, and the word for the generosity that gift expresses.

Paul takes this ordinary social favor and makes it the name for the whole saving act of God in Christ: God gives the supreme gift to people who have done nothing to deserve it. That single move, giving to the unworthy, is what marks his use off from the usual giving to fitting and honorable recipients. The favor is so central it becomes the very sphere a believer lives in, a standing one is brought into and stands in.

From there the word stretches naturally. The same favor takes concrete shape as a gift, including the relief money Paul gathered for poor believers in Jerusalem. It shows up as a power at work, equipping a person for service beyond their own strength. And it opens and closes nearly every letter as a blessing on the readers. These are not different words but one favor seen from different angles: the disposition, the gift it produces, and the effect it has on a life.

The ancient world heard all of this inside a circle of giving, receiving, and returning. Paul keeps the circle: the gift comes with no prior conditions of worth, yet it is meant to reshape the receiver into someone who lives a changed, loyal life. It is, as it has been put, a gift given without conditions but not without expectations.

The same circle of giving and receiving has a far end: the kindness that comes back from the one who was helped. Greek used this one word for both the favor given and the gratitude returned, because to the ancient ear they were two halves of a single relationship. In the New Testament this shows up most often in the set phrase rendered "thanks be to God," a burst of gratitude for what God has done.

A softer shade is the credit or recognition a good deed earns. When Jesus asks what "credit" it is to love only those who love you, or whether a master "thanks" a slave for simply doing his job, the word is measuring what is owed in return for an action. It is the bookkeeping side of kindness rather than the kindness itself.

This is kept apart from the favor sense above because a reader needs a genuinely different English word here. "Grace be to God" makes no sense; "thanks be to God" is the point. The word has swung from the gift to the gratitude that answers it.

The oldest layer of the word, reaching back to early Greek poetry, was simply the quality that delights: the loveliness of a face, a gift, or a well-turned phrase. A trace of this survives in the New Testament when speech is described as graceful or winsome.

When the crowd marvels at the gracious words coming from Jesus' mouth, or when believers are told to let their speech be seasoned and attractive, the word is naming an aesthetic and social charm, the pleasantness that makes words land well. This needs its own English word, charm or winsomeness, rather than favor or thanks, which is why it stands apart. It is a small and easily missed sense, but a real one, and a reminder that the word began as something heard and felt before it ever became a doctrine.