'Tradition' in the Bible

However, on that very day Joshua made them become wood cutters and water carriers for the congregation and for the LORD's altar in the place that he should choose, and this tradition continues to this day.

So the Jewish people made a tradition out of what they had begun to do and of what Mordecai had written to them,

the Jewish people established this celebration, making it a tradition for themselves, for their descendants, and for all who joined with them that they should not fail to observe these two days each year, based on the written instructions, and at the prescribed time.