Passage
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.
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.
1 Samuel 3:10 And the LORD came, and stood, and called as at other times, Samuel, Samuel. Then Samuel answered, Speak; for thy servant heareth.
1 Samuel 3:11 And the LORD said to Samuel, Behold, I will do a thing in Israel, at which both the ears of every one that heareth it shall tingle.
1 Samuel 3:12 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.
1 Samuel 3:13 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 Samuel 3:14 And therefore I have sworn unto the house of Eli, that the iniquity of Eli’s house shall not be purged with sacrifice nor offering for ever.
The verse centers on "all things", "perform", "against", "spoken", "concerning", "house", "begin", and "make". It is saying that the verse draws attention to "all things" and "perform", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 11's "And the LORD said to Samuel Behold..." into verse 13's "For I have told him that I...", so "all things" and "perform" belong inside that flow. In 1 Samuel context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "all things" and "perform" with trust shaped by these words, not by a vague optimism outside the passage.