Matthew Poole's Concise Commentary
Jeremiah 9:20
Yet, or therefore, hear the word of the Lord, i.e. do not think I speak words out of my own mind or fancy, but what I speak is from the Lord. O ye women; either those hired women mentioned before, or rather the women of the land; for God would have it not a mercenary, but a real mourning; and he mentioneth women,
1. To upbraid the men with their stupidity.
2. As being more apt to grieve, thereby to express the readiness that he would have the land to be in for mourning.
3. Because of the decay and want there would be of men, as is expressed in the next verse, by reason partly of the slaughter, and partly of the captivity; therefore here is mention of women with reference to children in the next verse, after whom their bowels would yearn; and daughters, either the scholars of the mourning women, or rather, with reference to young men, unto whom they might be given in marriage.
4. Because the female sex is least able to help themselves in a common calamity. Or,
5. Because they would be least solicitous, but would indulge their delicacies, pride, sloth, and wantonness, Isaiah 32:9,11. Every one her neighbour, Heb. a woman her friend; namely, that the grief might spread the further, and become deeper; for affections and passions, of what kind soever, are augmented by company: it notes how large and universal the mourning shall be, Amos 5:16.