^Dunn, James D. G. (Autumn 1993). Reinhartz, Adele (ed.). "Echoes of Intra-Jewish Polemic in Paul's Letter to the Galatians". Journal of Biblical Literature. 112 (3). Society of Biblical Literature: 462. doi:10.2307/3267745. ISSN0021-9231. JSTOR3267745. Galatians 2:14: "how is it that you compel the Gentiles to judaize?" "To judaize" was a quite familiar expression, in the sense "to live like a Jew", "to adopt a distinctively Jewish way of life"-with reference to Gentiles taking up Jewish customs like observance of the sabbath. The polemical note sounds in the verb "compel". [...] The element of compulsion would enter because there were Gentiles who were making claims, or for whom claims were being made, to enter into what generations of Jews had always regarded as their exclusive privileges (in terms of the argument of Galatians, into the direct line of inheritance from Abraham). To safeguard the character of these privileges it was evidently seen as necessary to ensure that such claimants conformed fully to the traditional notes of the covenant people. This Paul regarded as compulsion.
^Michele Murray Playing a Jewish Game: Gentile Christian Judaizing in the First and Second Centuries CE, Canadian Corporation for Studies in Religion, 2004, p. 33: "From Paul's perspective, by withdrawing from Gentile table fellowship, Peter was sending a message to the Gentile believers of Antioch. The message to Antiochene Gentile Christians was that they were to judaize."