John Calvin,
Calvin's Commentaries—Complete…
“ Thine only son Isaac, whom thou lovest. As if it were not enough to command in one word the sacrifice of his son, he pierces, as with fresh strokes, the mind of the holy man. By calling him his only son, he again irritates the wound recently indicted, by the banishment of the other son; he then looks forward into futurity, because no hope of offspring would remain. If the death of a firstborn son is wont to be grievous, what must the mourning of Abraham be? Each word which follows is emphatical, and serves to aggravate his grief. ”
