1 Samuel 4:18
And it came to pass, when he made mention of the ark of God, that he fell from off the seat backward by the side of the gate, and his neck brake, and he died: for he was an old man, and heavy. And he had judged Israel forty years.
Cross-references
In 1 Samuel 4:21, Phinehas's wife names her son Ichabod, indicating the glory's departure, parallel to Eli's death here from the same cause.
1 Samuel 4:22 explains the name Ichabod, 'the glory departed,' the same loss that caused Eli's death here.
1 Samuel 2:31 prophesies cutting off Eli's strength; his death here begins the fulfillment of that judgment on his house.
1 Samuel 2:32 predicts distress in God's dwelling and no old age in Eli's line; Eli's death at the ark's capture fulfills this.
1 Samuel 3:12 declares God will fulfill all spoken against Eli; his death here is the direct execution of that word.
1 Samuel 3:13 announces punishment for Eli's failure to restrain his sons; his death is the onset of that judgment.
1 Samuel 1:3 introduces Eli's sons Hophni and Phinehas as priests at Shiloh—this background explains the context of Eli's downfall in 4:18.
1 Samuel 5:1 continues the story: the Philistines take the ark to Ashdod—the immediate aftermath of the event that killed Eli.
Genesis 44:31 describes Jacob dying from grief if Benjamin is lost—mirrors Eli's fatal shock at losing the ark and sons; both old fathers die from bad news.