מדרש אויף שמואל א 2:17

5) If the devoted portions became tamei or were lost, I might think that the shok would not revert to Aaron and to his sons; it is, therefore, written "it shall be" (in any event). And thus is it written in respect to the sons of Eli (I Samuel 2:15): "Even before they would smoke the fats, the Cohein's youth would come and say to the slaughterer: Give flesh for roasting to the Cohein. He will not take from you cooked meat but only raw." What is written of them? (I Samuel 2:17) "And the sin of the youths was very great before the L–rd, for the men cheapened the offering of the L–rd."

Chapter 41: Prophets [1] And Eli was very old. "And he heard all that his sons did" (1 Samuel 2:22). "Fortunate is the man who listens to me, etc., for whoever finds me, etc. But he who sins against me wrongs his own soul, etc." (Proverbs 8:34-36). What caused Eli to live a long life and age greatly? It was because he was engaged in Torah study, as it is written, "And Eli the priest was sitting on the seat [by the doorpost of the temple]" (1 Samuel 1:9), which is the meaning of "Fortunate is the man, etc." (Proverbs 8:34). Why did it say "whoever finds me, etc." and "but he who sins, etc." and "all who hate me love death" (Proverbs 8:36)? These are the sons of Eli, as it is written, "The sons of Eli were worthless men; they did not know the Lord" (1 Samuel 2:12). Therefore, a righteous person may be called wicked because of his children, as it is written, "sons of worthlessness" (1 Samuel 2:12), as if to say "the sons of a worthless person." In all of the Torah, he is wicked, and all of Israel hated him because of his sons, as it is written, "The judgment of the priests, etc." (1 Samuel 2:17), "even before the fat was burned, etc., the sin of the young men was great and they had no regard for the Lord" (1 Samuel 2:13-17). And Israel saw them and said to each other, "See how the priests of the Lord use these offerings," but a heavenly voice answered them, "They do it for themselves," as it is written, "But he who sins against me wrongs his own soul, all who hate me love death" (Proverbs 8:36). And it is written, "On that day both of Eli's sons shall die" (1 Samuel 2:34), because they hated life and loved death, and because of this distress, an old woman leaped upon Eli. And Eli was very old.

[2] Another interpretation: "And Eli was very old. You will find in everyone who is written as old, there is no "very" except here, and Eli was very old, and he was ninety-eight years old. As it says, "who shows no partiality to princes" (Job 34:19). It is likened to a peasant (explained by Peretz) who took a stone and threw it into the king's pantry. The king said, "Hang him by the neck!" Similarly, the sons of Eli did more than enough to anger God, as it is said, "And their sin was very great before the Lord" (1 Samuel 2:17). God said, "Even though Eli is very old," as it is said, "And Eli was very old" (1 Samuel 2:22)."