On that day I will carry out against Eli everything I have spoken about his house, from beginning to end.
Here is, I. The message which, after all this introduction, God delivered to Samuel concerning Eli's house. God did not come to him now to tell him how great a man he should be in his day, what a figure he should make, and what a blessing he should be in Israel.
Commenting on 1 Samuel 3:11-18
In that day I will perform against Eli all things which I have spoken concerning his house,.... Or family, that is, by the man of God, Sa1 2:27 as that he would cut off the strength of it, that there should not be an old man in it; and such as remained should be reduced to the utmost poverty and meanness; this shows that that...
I will perform - all things which I have spoken - That is, what He had declared by the prophet, whose message is related Sa1 2:27, etc. When I begin, I will also make an end - I will not delay the execution of my purpose: when I begin, nothing shall deter me from bringing all my judgments to a conclusion.