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 .