What made Eli the priest live so long? The midrash gives a simple answer: Torah study. "Fortunate is the man who listens to me, watching daily at my gates, waiting at the posts of my doors" (Proverbs 8:34). Eli was sitting at the doorpost of the Temple when Hannah came to pray (1 Samuel 1:9). The verse uses "sitting" not as a passive description but as a spiritual posture — the man who has stationed himself at the gate of wisdom and refuses to leave.
But the same passage asks the harder question. Eli's sons, Hophni and Phinehas, were corrupt — they stole from the offerings and slept with the women who served at the entrance of the Tent of Meeting. Eli knew. He rebuked them, mildly, and then did nothing. The midrash is harsh: "He who sins against me wrongs his own soul" (Proverbs 8:36) applies to Eli's sons directly. But it also reaches backward to Eli — a father who taught Torah all his life and failed to enforce it in his own house.
The contrast between Eli's long life and his catastrophic end — the ark captured, his sons killed in one day, Eli himself dying when he heard the news — is the midrash's way of saying that Torah study alone is not enough. Knowledge without action curdles. Eli sat at the gate of wisdom for ninety-eight years. He never got up to stop his sons. God gave him long life and then demonstrated that length of days is not the same thing as a life well-lived.