This accords with the teaching of the medieval Carmelites, who lived as an eremetic congregation on Carmel in the 13th century; but who claimed (without any evidence) to be direct successors of Elijah and the Old Testament prophets. In 1291 the Mamluk advance into Syria compelled the friars on Carmel to abandon their monastery; but on dispersing through Western Europe they found that Western Carmelite congregations – especially in Italy – had largely abandoned the eremetic and ascetic ideal, adopting instead the conventual life and mission of the other Mendicant orders. Some researchers consider that the ensuing 14th–16th-century controversies can be found reflected in the text of the Gospel of Barnabas. The Gospel also takes a strongly anti-Pauline tone at times, saying in the Italian version's beginning: "many, being deceived of Satan, under pretence of piety, are preaching most impious doctrine, calling Jesus son of God, repudiating the circumcision ordained of God for ever, and permitting every unclean meat: among whom also Paul has been deceived." The Gospel of Barnabas claims that Jesus predicted the advent of Muhammad, thus conforming with the Qur'an which mentions:  A Muslim scholarly tradition links this Qur'anic passage to the New Testament references to the Paraclete in the canonical Gospel of John (14:16, 14:26, 15:26, 16:7). The Greek word "paraclete" can be translated as "Counsellor", and refers according to Christians to the Holy Spirit. Some Muslim scholars, have noted the similarity to the Greek "periklytos" which can be translated as "admirable one"; or in Arabic, "Ahmad". Hajj Sayed argues that the description of the conflict between Paul and Barnabas in Galatians supports the idea that the Gospel of Barnabas existed at the time of Paul. Blackhirst has suggested, by contrast, that Galatian's account of this argument could be the reason the gospel's writer attributed it to Barnabas. Paul writes in (Galatians Chapter 2):  Paul was attacking Peter for "trying to satisfy the Jews" by sticking to their laws, such as circumcision. It is contended that at this point Barnabas was following Peter and disagreeing with Paul. Some feel it also suggests that the inhabitants of Galatia at his time were using a gospel or gospels disagreeing with Paul's beliefs, which the Gospel of Barnabas could be one of them (although the Gospel of Peter would seem a more natural candidate, as in the light of the second letter.)