Unknown Author
1 Samuel 1:6ESV·author unknown

And her rival used to provoke her grievously to irritate her, because the LORD had closed her womb.

Matthew Henry Presbyterian @wholebiblehenry

We have here an account of the state of the family into which Samuel the prophet was born. His father's name was Elkanah, a Levite, and of the family of the Kohathites (the most honourable house of that tribe) as appears, Ch1 6:33, Ch1 6:34. His ancestor Zuph was an Ephrathite, that is, of Bethlehem-Judah, which was called Ephrathah, Ruth, Rut 1:2.

Commenting on 1 Samuel 1:1-8

John Gill Reformed Baptist @doctorgill

And her adversary also provoked her sore,.... That is, Peninnah, the other wife of Elkanah; for when a man had more wives, two or more, they were usually at enmity to one another, as the two wives of Socrates were, being always jealous lest one should have more love and respect than the other from the husband; and this woman provoked Hannah one time after...

Jamieson-Fausset-Brown Reformed @jfbcommentary

her adversary also provoked her sore--The conduct of Peninnah was most unbecoming. But domestic broils in the houses of polygamists are of frequent occurrence, and the most fruitful cause of them has always been jealousy of the husband's superior affection, as in this case of Hannah.