The elder--In a familiar letter John gives himself a less authoritative designation than "apostle"; so Pe1 5:1. lady--BENGEL takes the Greek as a proper name Kyria, answering to the Hebrew "Martha." Being a person of influence, "deceivers" (Jo2 1:7) were insinuating themselves into her family to seduce her and her children from the faith [TIRINUS], whence John felt it necessary to write a warning to her. (But see my Introduction and Pe1 5:13). A particular Church, probably that at Babylon, was intended. "Church" is derived from Greek "Kuriake," akin to Kuria, or Kyria here; the latter word among the Romans and Athenians means the same as ecclesia, the term appropriated to designate the Church assembly. love in the truth--Christian love rests on the Christian truth (Jo2 1:3, end). Not merely "I love in truth," but "I love in THE truth." all--All Christians form one fellowship, rejoicing in the spiritual prosperity of one another. "The communion of love is as wide as the communion of faith" [ALFORD].