what you eat or drink: Many ancient religions had rules about what foods and drinks they allowed. The Old Testament does not prohibit alcohol, but some devout Jews chose not to drink it, especially those who lived in non-Jewish cultures (see Daniel 1:8–16).
Many ancient religious groups, including Jews, held ceremonies to celebrate the new moon (see Numbers 10:10; Psalm 81:3; Isaiah 1:13).
The Jewish Sabbath was part of the law of Moses and essential in Jewish religion. Christians could choose to observe the Sabbath, but Paul says they have the freedom to decide (see Romans 14:5). He said that forcing Sabbath observance is wrong. Observing the Sabbath was not necessary to express Christian devotion.