No more duplicity

Our Lord calls Nathanael (a.k.a. Bartholomew) "A true Israelite. There is no duplicity in him." Scholars point out that Jacob was the first to bear the name 'Israel' (Genesis 32:29), but Jacob at one point had been duplicitous (Genesis 27:35-36).

From the footnotes of the New American Bible with a doff of the biretta to Father Cornelius O'Brien.