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.

By what is this cleansing from sin and fitting for God's service accomplished?
How will the decisions of the judgment be executed?
How visible is His coming to be?
What was to take place under the third trumpet?
What command is given under the sixth trumpet?
What is the bond of perfection?
Why did the unjust judge answer the widow's prayer?

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