McGarvey on Acts 16: «Yet we see him in the case before us, circumcising Timothy with his own hand, and this 'on account of certain Jews who were in those quarters».
cirp.org
SOURCE?? "making themselves foreskins"; I Macc. i. 15; Josephus, "Ant." xii. 5, § 1; Assumptio Mosis, viii.; I Cor. vii. 18;, Tosef.; Talmud tractes Shabbat xv. 9; Yevamot 72a, b; Yerushalmi Peah i. 16b; Yevamot viii. 9a; [1]; Catholic Encyclopedia: Circumcision: «To this epispastic operation performed on the athletes to conceal the marks of circumcision St. Paul alludes, me epispastho (1 Corinthians 7:18)».
SOURCE?? "making themselves foreskins"; I Macc. i. 15; Josephus, "Ant." xii. 5, § 1; Assumptio Mosis, viii.; I Cor. vii. 18;, Tosef.; Talmud tractes Shabbat xv. 9; Yevamot 72a, b; Yerushalmi Peah i. 16b; Yevamot viii. 9a; [1]; Catholic Encyclopedia: Circumcision: «To this epispastic operation performed on the athletes to conceal the marks of circumcision St. Paul alludes, me epispastho (1 Corinthians 7:18)».
Catholic Encyclopedia: St. James the Less: «Then we lose sight of James till St. Paul, three years after his conversion (A.D. 37), went up to Jerusalem. ... On the same occasion, the "pillars" of the Church, James, Peter, and John ‹gave to me (Paul) and Barnabas the right hands of fellowship; that we should go unto the Gentiles, and they unto the circumcision›».
Catholic Encyclopedia: Judaizers: «On their arrival Peter, who up to this had eaten with the Gentiles, ‹withdrew and separated himself, fearing them who were of the circumcision›, and by his example drew with him not only the other Jews, but even Barnabas, Paul's fellow-labourer».