1 Samuel 1:7

And as he did so year by year. — That is, Elkanah, on the occasion of every yearly visit to the national sanctuary, was in the habit of publicly giving the childless Hannah the double gift, to show his undiminished love; while the happier mother of his children, jealous of her rival, every year chose this solemn occasion of offering thank-offerings before the Tabernacle, especially to taunt the childless wife, no doubt referring the absence of children, which among the mothers of Israel was considered so deep a calamity, to the special auger of God.