What does 2 Samuel 21:20 mean?

And there was again war at Gath, where was a man of great stature, that had on every hand six fingers, and on every foot six toes, four and twenty in number; and he also was born to the giant.

And there was yet a battle in Gath, where was a man of great stature, that had on every hand six fingers, and on every foot six toes, four and twenty in number; and he also was born to the giant.

And there was again war at Gath, where was a man of great stature, that had on every hand six fingers, and on every foot six toes, four and twenty in number; and he also was born to the giant.

And again there was war at Gath, where there was a very tall man, who had twenty-four fingers and toes, six fingers on his hands and six toes on his feet; he was one of the offspring of the Rephaim.

And the battle is again in Gath, and there is a man of stature, and the fingers of his hands <FI>are<Fi> six, and the toes of his feet <FI>are<Fi> six, twenty and four in number, and he also hath been born to the giant,

A fourth battle was in Geth: where there was a man of great stature, that had six fingers on each hand, and six toes on each foot, four and twenty in all, and he was of the race of Arapha.

And there was again a battle, at Gath; and there was a man [there] of great stature, that had on each hand six fingers, and on each foot six toes, four and twenty in number; and he also was born to Raphah.