22 Benaiah the son of Jehoiada, the son of a valiant man of Kabzeel, who had done mighty deeds, he killed the two (sons of) Ariel of Moab: he went down also and killed a lion in the midst of a pit in time of snow.
*Minor differences ignored. Grouped by changes, with first version listed as example.
Benaiah - slew two lion-like men of Moab - The Targum says,
"Benaiah was a valiant man, fearing sin, and of a righteous conduct in Kabzeel; he slew two of the nobles of Moab, who were like two strong lions. He was a great and righteous man as any in the second sanctuary. On a certain day, having struck his foot against a dead tortoise, he went down to Shiloh, and having broken pieces of ice, he washed himself with them, and afterward went up, and read the book of the law of the priests, in which much is contained, in a short winter's day, viz., the tenth of the month Tebeth."
Benaiah . . . of Kabzeel--a town in the south of Judah (Joshua 15:21; Nehemiah 11:25). It is said that "he had done many acts," though three only are mentioned as specimens of his daring energy and fearless courage.
slew two lionlike men of Moab--literally, "lions of God," that is, great lions or champions. This gallant feat was probably achieved in David's hostile invasion of Moab (2-Samuel 8:2).
also he went down and slew a lion in a pit in a snowy day--probably a cave into which Benaiah had taken refuge from the snowstorm, and in which he encountered a savage lion which had its lair there. In a spacious cave the achievement would be far greater than if the monster had been previously snared or cabined in a pit.
*More commentary available at chapter level.