A.T. Robertson Commentary John 1:47

"Jesus saw Nathanael coming to him, and saith of him, Behold, an Israelite indeed, in whom is no guile!" — John 1:47 (ASV)

Behold (ιδε). Here an exclamation as often like ιδου.

An Israelite indeed (αληθως Ισραηλειτης). "Truly an Israelite," one living up to the covenant name, Israel at its best (Romans 2:29), without the guile (δολος, deceit, bait for fish, from δελεαζω, to catch with bait) that Jacob once had of which Isaac complained (Genesis 27:35, δολος, here in LXX). The servant of Jehovah was to be without guile (Isaiah 53:9).