1 Samuel 2:30-32

30Therefore the Lord God of Israel declares, ‘I did indeed say that your house and that of [Aaron] your father would walk [in priestly service] before Me forever.’ But now the Lord declares, ‘Far be it from Me—for those who honor Me I will honor, and those who despise Me will be insignificant and contemptible.

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

32You will look at the distress of My house (the tabernacle), in spite of all the good which God will do for Israel, and there will never again be an old man in your house.