What advice did the old man give okonkwo about ikemefuna

As Okonkwo, Nwoye, and Ikemefuna are happily eating the rare food, Ogbuefi Ezeudu, the oldest man of the village, calls on Okonkwo to speak to him privately. He tells Okonkwo that the Oracle has decreed that Ikemefuna must be killed as part of the retribution for the woman killed three years before in Mbaino. He tells Okonkwo to take no part in the killing since the boy calls him "father."

Later, Okonkwo tells Ikemefuna that he is going home to Mbaino, but the boy does not believe him. When Nwoye hears that his friend is leaving, he bursts into tears and is beaten by his father.

Many men of Umuofia accompany Ikemefuna to the outskirts of the village and into the forest. With Okonkwo walking near him, Ikemefuna loses his fear and thinks about his family in Mbaino. Suddenly, Okonkwo drops to the rear of the group and Ikemefuna is afraid again. As the boy's back is turned, one of the men strikes the first blow with his machete. Ikemefuna cries out to Okonkwo, "My father, they have killed me!" and runs toward Okonkwo. Afraid to appear weak, Okonkwo kills Ikemefuna with his machete.