Why did God reprove Eli?

Answer

"In that day I will perform against Eli all things which I have spoken concerning his house: when I begin, I
will also make an end. For I have told him that I will judge his house for ever for the iniquity which he
knoweth; because his sons made themselves vile, and he restrained them not." 1 Sam. 3:12,13.

What different results attend the covering and the confessing of sins?
Upon what ground were the previous promises then renewed to Abraham?
After creating man, what did God say?
What did they have in the law?
How, then, did the Lord prove the people (verse 4) whether they would keep His law, or not?
How did Christ answer him?
Before whom are we said to speak?

Questions & Answers are from the book Bible Readings for the Home Circle