Absalom, a complete asshole, met an untimely death, and even though he caused untold trouble to his father, David still wept bitterly over his son, 'Absalom,oh my son Absalom!" That one still gets to me.
And at the end of one of Rush's more emotional songs, Distant Early Warning (1984), Geddy calls out "Absalom! Absalom!" It always brings tears to my eyes.