Jewish teachers developed long-standing traditions to explain how the written Torah should guide daily life. These traditions were memorized and passed from teacher to student by word of mouth(see 1 Corinthians 11:23; 15:1–5).
break the tradition of … wash their hands (see Mark 7:2–4; Luke 11:38): The tradition of hand washing was seen as important. Ignoring this practice was considered disobedience to the Torah and unfaithfulness to God’s will for Israel (see Matthew 23:25–26).