56. ἐν ἐμοὶ μένει, κἀγὼ ἐν αὐτῷ. This is one of S. John’s very characteristic phrases to express the most intimate mutual fellowship and union; Joh 14:10; Joh 14:20, Joh 15:4-5, Joh 17:21; 1Jn 3:24; 1Jn 4:15-16. Christ is at once the centre and the circumference of the life of the Christian; the source from which it springs and the ocean into which it flows. see on Joh 1:33.