1 Maccabees 1:11–15
11 In those days certain renegades came out from Israel and misled many, saying, “Let us go and make a covenant with the Gentiles around us, for since we separated from them many disasters have come upon us.” 12 This proposal pleased them, 13 and some of the people eagerly went to the king, who authorized them to observe the ordinances of the Gentiles. 14 So they built a gymnasium in Jerusalem, according to Gentile custom, 15 and removed the marks of circumcision, and abandoned the holy covenant. They joined with the Gentiles and sold themselves to do evil.