The Geneva Bible Translation Notes, [1599], at sacred-texts.com
(a) Because of God's promise made to the people of Israel.
And Ibhar, and Elishua, and (b) Elpalet,
(b) Elpalet and Nogah are not mentioned in (Sa2 5:14), so there are only eleven and here thirteen.
So they came up to Baalperazim; and David smote them there. Then David said, God hath broken in upon mine enemies by mine hand like the breaking forth of waters: therefore they called the name of that place (c) Baalperazim.
(c) That is, the valley of divisions, because the enemies were dispersed there like waters.