The objections to Paul's authorship on the score of style and grammar are finally set aside by the philologist Ngeli in Der Wortschatz des Apostels Paulus 1905), pp. 80-82.
This affects even the vocabulary which has also "einen gewissen vulgaren Zug" (Nageli, Der Wortschatz des Apostels Paulus, 1905, PP. 78-79).
Ngeli (Der Wortschatz des Apostels Paulus, 1905, pp. 85 seq.), whose opinion is all the more significant on this point that he refuses to admit any linguistic features adverse to the Pauline authorship of the other epistles.