Why would the presence of Paul allow him to change his tone?
Galates 4:20 (NEG79)
20je voudrais être maintenant auprès de vous, et changer de langage, car je suis dans l'inquiétude à votre sujet.
Paul is deeply troubled by the Galatians’ attraction to the old covenant law and is not completely sure of what to say to them.1 If he was present with them, he would be able to regain their trust and allegiance and it would not be necessary to use such severe language as is found in the letter.2
20 je voudrais être maintenant auprès de vous, et changer de langage, car je suis dans l'inquiétude à votre sujet.