The verb translated is … kind is not found elsewhere in the Greek Bible. However, it is clearly related to the adjective that is translated “good” in 15.33 and, when used as a noun in Rom 2.4, is translated as “kindness.”

When used in a bad sense, as here, the verb translated is … jealous refers to envy of other people. See also James 4.2, where the verb is translated “covet.”

Boastful translates two Greek verbs that Good News Bible renders “conceited or proud.” The first is a rare verb not used elsewhere in the Greek Bible. In secular Greek literature it has the meaning “boast.” The second verb, “is … proud,” is used in 4.6, 18, 19; 5.2; 8.1.

Quoted with permission from Ellingworth, Paul and Hatton, Howard A. A Handbook on Paul’s First Letter to the Corinthians, 2nd edition. (UBS Handbook Series). New York: UBS, 1985/1994. For this and other handbooks for translators see here .