Concern (-eth)
New TestamentVine's Expository Dictionary of Biblical Words
Definition
* 1. The neuter plural of the article ("the things"), with the genitive case of a noun, is used in 2Co 11:30 of Paul's infirmity, "the things that concern my infirmity," lit., "the (things) of my infirmity."
* 2. The neuter singular of the article, with the preposition peri, "concerning," is used by the Lord in Luk 22:37, "that which concerneth," lit., "the (thing) concerning (Me)." The same construction is found in Luk 24:27, Act 19:8, Act 28:31