The man of thine, i.e. those of thy posterity. From mine altar, i.e. from attendance upon mine altar; whom I shall not destroy, but suffer to live, and wait at the altar. Shall be to consume thine eyes, and to grieve thine heart; shall be so forlorn and miserable, that if thou wast alive to see it, it would grieve thee at the very heart, and thou wouldst consume thine eyes with weeping for their calamities. So the phrase is like that of Rachel weeping for her children, Jeremiah 31:15, which were slain long after her death. The increase of thine house, i.e. thy children. In the flower of their age; about the thirtieth year of their age, when they were to be admitted to the plenary administration of their office, Numbers 4:3, then they shall die.
Related Commentaries of 1 Samuel 2:33
1 Samuel 2:33
33 And the man of thine, whom I shall not cut off from mine altar, shall be to consume thine eyes, and to grieve thine heart: and all the increase of thine house shall die in the flower of their age.