After this opened Job his mouth. The first to take the word is Job, as, indeed, etiquette made necessary, when the visit paid was one of condolence. It can only be conjectured what the feelings were which had kept him silent so long. We may, perhaps, suggest that in the countenances and manner of his friends he saw something which displeased him, something indicative of their belief that he had brought his afflictions upon himself by secret sins of a heinous character. Pharisaism finds it very difficult to conceal itself; signs of it are almost sure to escape; often it manifests itself, without a word spoken, most offensively. The phrase, "opened his mouth," is not to be dismissed merely as a Hebraism. It is one used only on solemn occasions, and implies the utterance of deep thoughts, well considered beforehand (Psalms 78:21; Matthew 5:2), or of feelings long repressed, and now at length allowed expression. And cursed his day; "cursed," i.e; the "day of his birth." Some critics think that "cursed" is too strong a word, and suggest "reviled;" but it cannot be denied that "to curse" is a frequent meaning of קָלל and it is difficult to see in Job's words (verses 3-10) anything but a "curse" of a very intense character. To curse one's natal day is not, perhaps, a very wise act, since it can have no effect on the day or on anything else; but so great a prophet as Jeremiah imitated Job in this respect (Jeremiah 20:14-18), so that before Christianity it would seem that men were allowed thus to relieve their feelings. All that such cursing means is that one wishes one had never been born.
And Job spake, and said, Let the day perish wherein I was born. An idle wish, doubtless; the vague utterance of extreme despair. Days cannot perish, or, at any rate, one day cannot perish more than another. They all come, and then are gone; but no day can perish out of the year, which will always have its full complement of three hundred and sixty-five days till time shall be no more. But extreme despair does not reason. It simply gives utterance to the thoughts and wishes as they arise. Job knew that many of his thoughts were vain and foolish, and confesses it further on (see Job 6:3). And the night in which it was said; rather, which said. Day and night are, both of them, personified, as in Psalms 19:2. There is a man child conceived. A man child was always regarded in the ancient world as a special blessing, since thus the family was maintained in being. A girl passed into another family.