in the Old Testament, there are even wider gaps between generations. Also, we do not see any instances of papponymic naming patterns, where children are named after their grandparents, which was a common custom throughout this period. This may indicate that Matthew has telescoped this segment by collapsing such repetitions. Luke's genealogy In the Gospel of Luke, the genealogy appears at the beginning of the public life of Jesus. This version is in ascending order from Joseph to Adam. After telling of the baptism of Jesus, states, "Jesus himself began to be about thirty years of age, being (as was supposed) the son of Joseph, which was [the son] of Heli, ..." (3:23) and continues on until "Adam, which was [the son] of God." (3:38) The Greek text of Luke's Gospel does not use the word "son" in the genealogy after "son of Joseph". Robertson notes that, in the Greek, "Luke has the article tou repeating uiou (Son) except before Joseph". This genealogy descends from the Davidic line through Nathan, who is an otherwise little-known son of David, mentioned briefly in the Old Testament. In the ancestry of David, Luke agrees completely with the Old Testament. Cainan is included between Arphaxad and Shelah, following the Septuagint text (though not included in the Masoretic Text followed by most modern Bibles). Augustine notes that the count of generations in the Book of Luke is 77, a number symbolizing the forgiveness of all sins. This count also agrees with the seventy generations from Enoch set forth in the Book of Enoch, which Luke probably knew. Though Luke never counts the generations as Matthew does, it appears he also followed hebdomadic principle of working in sevens. However, Irenaeus counts only 72 generations from Adam. The reading "son of Aminadab, son of Aram", from the Old Testament is well attested. The Nestle-Aland critical edition, considered the best authority by most modern scholars, accepts the variant "son of Aminadab, son of Admin, son of Arni", counting the 76 generations from Adam rather than God. Luke's qualification "as was supposed" () avoids stating that Jesus was actually a son of Joseph, since his virgin birth is affirmed in the same gospel. Some view that "as was supposed of Joseph" regards Luke as calling Jesus a son of Eli—meaning that Heli (, Heli) was the maternal grandfather of Jesus, with Luke tracing the ancestry of Jesus through Mary.