John 1:27

27. αὐτός ἐστιν is an addition to fill out the construction, and ὁς ἐμπ. μ. γ. has been inserted (Acts 3) from John 1:15; John 1:30 : אBC1L omit both.

27. ὁ ὀπίσω μου ἐρχόμενος. This is the subject of the sentence; He that cometh after me … is standing in the midst of you, and ye know Him not. Ὑμεῖς is emphatic; ‘Whom ye who question me know not, but whom I the questioned know.’

ἄξιος ἵνα. Literally, worthy in order that I may unloose. An instance of S. John’s preferring ἵνα where another construction would have seemed more natural: see on John 1:8, and comp. John 2:25; John 5:40; John 6:7; John 11:50; John 15:8, &c.

αὐτοῦ. This is redundant after οὗ, perhaps in imitation of Hebrew construction.