one another, each other: the members of a group acting reciprocally, each toward the others and back again.
The word means simply "one another" or "each other." It is a reciprocal pronoun: it points back to a group and says the members act toward one another. It has no singular and never serves as the subject of a sentence, because it always describes a group acting on itself. It was built long before the New Testament by doubling the ordinary Greek word for "other" (ἄλλος), and its meaning never drifted: it means the same thing in Homer, in everyday letters and contracts, and in Paul.
Because the pronoun itself is so plain, all of its color comes from the verb it travels with, not from the word itself. The same small word runs across the whole range of human interaction:
- neutral reporting, where people simply speak to and look at each other (the crowds and disciples of the Gospels and Acts)
- the warm commands of the letters, where believers are told to love, forgive, welcome, and encourage each other
- open hostility, where people bite and devour, betray, or even kill one another
In the letters especially, "one another" becomes the everyday word for the shared life of the church. Paul grounds it in a single image: believers are "members of one another" (Romans 12:5; Ephesians 4:25), parts of one body, and the long strings of commands simply spell out what that mutual belonging looks like in practice. It is ordinary Greek carrying an extraordinary weight, describing a community meant to be mutually loving, honoring, forgiving, and serving rather than one-directional.
Whether Jesus' command to love one another is limited to fellow disciples as an inward-facing, in-group ethic, or is bounded in its immediate reference to the community yet aimed outward as the ground of the community's witness to the world.
- minorityThe love command is directed within the disciple community and does not itself extend to outsiders; the Fourth Gospel's ethic is that of a bounded group.; Ernst Käsemann, The Testament of Jesus; Wayne A. Meeks, "The Man from Heaven in Johannine Sectarianism," JBL 91 (1972)
- majorityThe reference is bounded to the community, but the mutual love is the visible sign by which outsiders come to believe (John 13:35; 17:20-23), so it serves mission rather than sealing off a sect.; D. A. Carson, The Gospel According to John (PNTC); Craig S. Keener, The Gospel of John: A Commentary