1 Samuel 4:17-18

17So the messenger answered and said, “Israel has fled before the Philistines, and there has been a great slaughter among the people. Also your two sons, Hophni and Phinehas, are dead; and the ark of God has been captured.”

18Then it happened, when he made mention of the ark of God, that Eli fell off the seat backward by the side of the gate; and his neck was broken and he died, for the man was old and heavy. And he had judged Israel forty years.