A.T. Robertson Commentary John 9:28

"And they reviled him, and said, Thou art his disciple; but we are disciples of Moses." — John 9:28 (ASV)

They reviled him (ελοιδορησαν αυτον). First aorist active indicative of λοιδορεω, old verb from λοιδορος (reviler, 1 Corinthians 5:11), in N.T. only here, Acts 23:4; 1 Corinthians 4:12; 1 Peter 2:23.

Thou art his disciple (συ μαθητης ε εκεινου). Probably a fling in εκεινου (of that fellow). He had called him a prophet (9:17) and became a joyful follower later (9:36-38).

But we are disciples of Moses (ημεις δε του Μωυσεως εσμεν μαθητα). This they said with proud scorn of the healed beggar. All orthodox rabbis so claimed.