Like the Greek adjective “alethes,” the Greek adjective “alethinos” also described what was true or genuine.
Jesus spoke of “true riches” in Lk. 16:11. The book of John talks about the “true light” (Jn. 1:9), “true worshipers (Jn. 4:23), and the “true bread” (Jn. 6:32). Jesus is identified as the “true vine” in Jn. 15:1. Paul said there is a “true God” (1 Thess. 1:9) and an unnamed author said people can have a “true heart” (Heb. 10:22).
This adjective is limited to the books of Luke, John, First Thessalonians, Hebrews, First John, and the book of Revelation. The book that most often uses this term is Revelation—John used this adjective ten times when writing the final book of the New Testament.