Kings I 3:14

14 And not so; I have sworn to the house of Eli, the iniquity of the house of Eli shall not be atoned for with incense or sacrifices for ever.

Kings I 3:14 Meaning and Commentary

1 Kings 3:14

And if thou wilt walk in my ways
Prescribed and directed to in his word, to keep my statutes and my commandments;
ceremonial, moral, and judicial: as thy father David did walk;
which Solomon himself had observed, ( 1 Kings 3:6 ) ; and whose walk was worthy of his imitation: then I will lengthen thy days;
the other promises of riches and honour are absolute, but this of long life conditional, depending upon his holy walk and conversation; and hence, because he failed in this the Jews observe he did not attain to long life, dying, as they suppose, at fifty two years of age; which is grounded on a wrong hypothesis, that he was but twelve years of age when he he began to reign, and he reigned forty years, as before observed.

Kings I 3:14 In-Context

12 In that day I will raise up against Heli all things that I have said against his house; I will begin, and I will make an end.
13 And I have told him that I will be avenged on his house perpetually for the iniquities of his sons, because his sons spoke evil against God, and he did not admonish them.
14 And not so; I have sworn to the house of Eli, the iniquity of the house of Eli shall not be atoned for with incense or sacrifices for ever.
15 And Samuel slept till morning, and rose early in the morning, and opened the doors of the house of the Lord; and Samuel feared to tell the vision.
16 And Heli said to Samuel, Samuel, son; and he said, Behold, I.

The Brenton translation of the Septuagint is in the public domain.