What is significant about Okwonko's breaking the peace during the Week of Peace? What does this action indicate about Okonkwo?

During this time, however, Okonkwo breaks the peace. He beats his third wife, Ojiugo, for not arriving home in time to cook his midday meal. By beating his wife, he breaks the law of the Week of Peace. Ezeani, the priest of the earth goddess, comes to punish him.

The priest bashes Okonkwo for violating the rules of the sacred week and possibly making the earth goddess angry. Then he gives Okonkwo instructions for righting his wrong: Okonkwo must bring a sacrifice to the goddess’s shrine. This shows that Okonkwo's abusive tendencies violate ancient precepts. Okonkwo can't keep his misogynistic temper in check.