2:16-23 Paul repudiates the false teachers and their demands, explaining why their appeal comes from human teachings (see 2:8). They advocated various rules of conduct that had no basis in Christ. 2:16 what you eat or drink: Religious teachings that prohibited certain kinds of food and drink were widespread in the ancient world. The Old Testament does not prohibit drinking alcohol, but many pious Jews who lived in pagan cultures did abstain (cp. Dan 1:8-16). • Many ancient religious groups, including the Jews, celebrated the new moon with various ceremonies (see Num 10:10; Ps 81:3; Isa 1:13). • Jewish Sabbaths were set forth in the law of Moses and celebrated by Jews as an essential part of their religion. Christians could continue to observe the Sabbath if they wanted to, but Paul asserts that Christians have liberty on this matter (see Rom 14:5) and that it is wrong for anyone to insist on Sabbath observance as a necessary expression of Christian piety.