וַֽיְהִי֙ אַֽחֲרֵי־כֵ֔ן וַתְּהִי־ע֧וֹד הַמִּלְחָמָ֛ה בְּג֖וֹב עִם־פְּלִשְׁתִּ֑ים אָ֣ז הִכָּ֗ה סִבְּכַי֙ הַחֻ֣שָׁתִ֔י אֶת־סַ֕ף אֲשֶׁ֖ר בִּילִדֵ֥י הָרָפָֽה׃ (פ)
Später war abermals Krieg zu Gob mit den Philistern. Damals schlug der Husatite Sibchai den Saf, von den Kindern des Rafa.
Rashi
then Sibbecai the Hushathite smote Sippai of the sons of Rapha But in Samuel (II 21:18), it is written: “Saph, who was one of the sons of Rashah,” who was the brother of Goliath the Philistine and Ishbi in Nob.