Knowing in himself (
eidw en eautwi). Second perfect active participle of
oida. See
1 John 2:25 for this supernatural insight into men's minds.
Murmured (
gogguzousin). Present active indicative retained in indirect discourse. See 1 John 41 for
gogguzw.
At this (
peri toutou). "Concerning this word."
Cause to stumble (
skandalizei). Common Synoptic verb from
skandalon for which see
Matthew 5:29 . In John again only in
Matthew 16:1 .