Adam Clarke on 1 Samuel 1:7

And as he did so year by year - As the whole family went up to Shiloh to the annual festivals, Peninnah had both sons and daughters to accompany her, 1Sam 1:4, but Hannah had none; and Peninnah took this opportunity particularly to twit Hannah with her barrenness, by making an ostentatious exhibition of her children.

Therefore she wept - She was greatly distressed, because it was a great reproach to a woman among the Jews to be barren; because, say some, every one hoped that the Messiah should spring from her line.