Then I will raise up for Myself a faithful priest. He will do whatever is in My heart and mind. And I will build for him an enduring house, and he will walk before My anointed one for all time.
Eli reproved his sons too gently, and did not threaten them as he should, and therefore God sent a prophet to him to reprove him sharply, and to threaten him, because, by his indulgence of them, he had strengthened their hands in their wickedness.
Commenting on 1 Samuel 2:27-36
And it shall come to pass, that everyone that is left in thine house,.... That is not cut off by death, the few remains of Eli's posterity in succeeding times, after the high priesthood was removed out of his family into another; so that they were reduced at best to common priests, and these, as it should seem, degraded from that office for their maladministration...
And I will raise me up a faithful priest, [that] shall do according to [that] which [is] in mine heart and in my mind: and I will build him a sure house; and he shall walk before mine anointed for ever. (z) Meaning Zadok, who succeeded Abiathar, and was the figure of Christ.