28. αὐτοὶ ὑμεῖς. ‘Ye yourselves, though you are so indignant on my behalf.’ They had appealed to his testimony (Joh 3:26); he turns it against them. He is not responsible for their error.
ἔμπ. ἐκ. John speaks more plainly in Joh 1:26; Joh 1:30 : now that Jesus has manifested Himself he feels free to declare Him to be the Christ.