1 Samuel 2:30-33 Amplified Bible (AMP)

30. Therefore the Lord, the God of Israel, says, I did promise that your house and that of your father [forefather Aaron] should go in and out before Me forever. But now the Lord says, Be it far from Me. For those who honor Me I will honor, and those who despise Me shall be lightly esteemed.

31. Behold, the time is coming when I will cut off your strength and the strength of your own father's house, that there shall not be an old man in your house.

32. And you shall behold the distress of My house, even in all the prosperity which God will give Israel, and there shall not be an old man in your house forever.

33. Yet I will not cut off from My altar every man of yours; some shall survive to weep and mourn [over the family's ruin], but all the increase of your house shall die in their best years. [I Sam. 22:17-20.]

1 Samuel 2