NET
4 Later there was a battle with the Philistines in Gezer. At that time Sibbekai the Hushathite killed Sippai, one of the descendants of the Rephaim, and the Philistines were subdued.
Darby
4 And it came to pass after this, that there arose war at Gezer with the Philistines; then Sibbechai the Hushathite smote Sippai, one of the children of Rapha; and they were subdued.
KJV
4 And it came to pass after this, that there arose war at Gezer with the Philistines; at which time Sibbechai the Hushathite slew Sippai, [that was] of the children of the giant: and they were subdued.